Special minerals only stay in Antarctica

As we know very well that, Antarctica is the outside of our world, so the topography is changing step by step. On of the most changins is minerals. Our classic undersoil is changing in Antarctica. There are many different minerals containing expensive minerals. Lets examine them one by one.

I'm adding the first one to OP, other ones will be added to another posts.

1- Boralsilite:



General Boralsilite Information

Help on Chemical  Formula: Chemical Formula:   Al16B6Si2O27
Help on Composition: Composition:   Molecular Weight = 1,144.71 gm
     Aluminum  37.71 %  Al   71.26 % Al2O3
     Silicon    4.91 %  Si   10.50 % SiO2
     Boron      5.67 %  B    18.25 % B2O3
     Oxygen    51.71 %  O
              ______        ______
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula:   Al16B6Si2O37
Help on Environment: Environment:   Found in a tourmaline - quartz intergrowth in granitic pegmatite cutting granulite-facies metapelitic rocks, Structurally related to sillimanite.
Help on IMA Status: IMA Status:   Approved IMA 1998 (Dana # Added)
Help on Locality: Locality:   Stornes Peninsula, Larsemann Hills, Prydz Bay, east Antarctica. Almgjotheii in the aureole of the Rogaland intrusive complex, southwestern Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin:   Named after its composition of (bor}on, (al)uminum, and (sil)icon.
Help on Name Pronunciation: Name Pronunciation:   Boralsilite + Pronunciation Say BORALSILITE
Help on Synonym: Synonym:   ICSD 87662
    IMA1996-029
    PDF 51-1451
 
Boralsilite Image

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Boralsilite   Grandidierite

Comments: B&W PPL image of aggregates of boralsilite in quartz near grandidierite. Pyrite is partially replaced by oxide. Abbrev: A+B = Secondary andalusite, B = boralsilite, G = grandidierite, P = pyrite, Q = quartz. (AmMin v93:294).
Location: Pegmatites from the Larsemann Hills, East Antarctica. Scale: See Image.
© American Mineralogist

Boralsilite Crystallography

Help on Axial Ratios: Axial Ratios:   a:b:c =2.6492:1:2.7052
Help on Cell Dimensions: Cell Dimensions:   a = 14.767, b = 5.574, c = 15.079, Z = 2; beta = 91.96° V = 1,240.45 Den(Calc)= 3.06
Help on Crystal System: Crystal System:   Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction:   By Intensity(I/Io): 5.19(1), 4.31(0.7), 5.41(0.7),
 Click Here for Large Boralsilite Structure Window Crystal Structure:
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Peacor D R , Rouse R C , Grew E S , American Mineralogist , 84 (1999) p.1152-1161, The crystal structure of boralsilite and its relation to a family of, boroaluminosilicates, sillimanite, and andalusite
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Physical Properties of Boralsilite

Help on Cleavage: Cleavage:   {???} Fair, {???} Fair
Help on Color: Color:   White, Colorless.
Help on Density: Density:   3.06
Help on Diaphaneity: Diaphaneity:   Transparent
Help on Habit: Habit:   Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit:   Fibrous - Crystals made up of fibers.
Help on Luster: Luster:   Vitreous (Glassy)
Help on Streak: Streak:   white
 
Optical Properties of Boralsilite

Help on Gladstone-Dale: Gladstone-Dale:   CI meas= -0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2095,KPDmeas= 0.2095,KC= 0.2086
Ncalc = 1.64
Help on Optical Data: Optical Data:   Biaxial (+), a=1.629, b=1.64, g=1.654, bire=0.0250, 2V(Calc)=84, 2V(Meas)=81.8. Dispersion very weak, r > v.
 
Calculated Properties of Boralsilite

Help on Electron Density: Electron Density:   Bulk Density (Electron Density)=3.00 gm/cc
note: Specific Gravity of Boralsilite =3.06 gm/cc.
Help on Fermion Index: Fermion Index:   Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric:   PEBoralsilite = 1.35 barns/electron
U=PEBoralsilite x rElectron Density= 4.06 barns/cc.
Help on Radioactivity: Radioactivity:   GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Boralsilite is Not Radioactive
 
Boralsilite Classification

Help on  Dana Class: Dana Class:   56.03.03.01 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
    (56.03)with [Si2O7] with borate groups
    (56.03.03)Dana Group
    
56.03.03.01 Boralsilite! Al16B6Si2O27 C 2/m 2/m
Help on  Strunz Class: Strunz Class:   09.BD.30 09 - SILICATES (Germanates)
    09.B - Sorosilicates
    09.BD -Si2O7 groups with additional anions;

2- Grandidierite: This very rarely mineral found in Madagaskar but new minerals found in Antarctica.





General Grandidierite Information

Help on Chemical  Formula: Chemical Formula:   (Mg,Fe++)Al3(BO4)(SiO4)O
Help on Composition: Composition:   Molecular Weight = 296.03 gm
     Magnesium   6.16 %  Mg   10.21 % MgO
     Aluminum   27.34 %  Al   51.67 % Al2O3
     Iron        4.72 %  Fe    6.07 % FeO
     Silicon     9.49 %  Si   20.30 % SiO2
     Boron       3.65 %  B    11.76 % B2O3
     Oxygen     48.64 %  O
               ______        ______
               100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula:   Mg0.75Fe2+0.25Al3(BO4)(SiO4)O
Help on Environment: Environment:   Rare accessory mineral in aluminous boron-rich rocks, thermally and high-grade regionally metamorphosed under low pressure; in pegmatites, aplites, gneisses; in xenoliths.
Help on IMA Status: IMA Status:   Valid Species (Pre-IMA) 1902
Help on Locality: Locality:   Andrahomana, southwest of Fort Dauphin, southern Madagascar. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin:   Named for Alfred Grandidier (1836-1912), French naturalist and explorer, an authority on Madagascar.
Help on Name Pronunciation: Name Pronunciation:   Grandidierite + Pronunciation Say GRANDIDIERITE
Help on Synonym: Synonym:   ICSD 36064
    PDF 18-581
 
Grandidierite Image

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Grandidierite

Comments: Translucent blue-green crystalline grandidierite in pegmatite.
Location: Vohibola, Madagascar. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Grandidierite   Boralsilite

Comments: B&W PPL image of aggregates of boralsilite in quartz near grandidierite. Pyrite is partially replaced by oxide. Abbrev: A+B = Secondary andalusite, B = boralsilite, G = grandidierite, P = pyrite, Q = quartz. (AmMin v93:294).
Location: Pegmatites from the Larsemann Hills, East Antarctica. Scale: See Image.
© American Mineralogist

Grandidierite Crystallography

Help on Axial Ratios: Axial Ratios:   a:b:c =0.9417:1:0.5245
Help on Cell Dimensions: Cell Dimensions:   a = 10.34, b = 10.98, c = 5.76, Z = 4; V = 653.95 Den(Calc)= 3.01
Help on Crystal System: Crystal System:   Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm
Help on X Ray Diffraction: X Ray Diffraction:   By Intensity(I/Io): 5.04(1), 5.17(1), 5.48(0.,
 Click Here for Large Grandidierite Structure Window Crystal Structure:
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Stephenson D A , Moore P B , Acta Crystallographica, Section B , 24 (1968) p.1518-1522, The crystal structure of grandidierite, (Mg,Fe)Al3SiBO9, Locality: Fort Dauphin, Madagascar
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Physical Properties of Grandidierite

Help on Cleavage: Cleavage:   {100} Good, {010} Good
Help on Color: Color:   Bluish green.
Help on Density: Density:   2.976
Help on Diaphaneity: Diaphaneity:   Transparent to translucent
Help on Fracture: Fracture:   Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit:   Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness:   7.5 - Garnet
Help on Luster: Luster:   Vitreous (Glassy)
Help on Streak: Streak:   white
 
Optical Properties of Grandidierite

Help on Gladstone-Dale: Gladstone-Dale:   CI meas= -0.019 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2079,KPDmeas= 0.2102,KC= 0.2063
Ncalc = 1.61 - 1.62
Help on Optical Data: Optical Data:   Biaxial (-), a=1.602, b=1.636, g=1.639, bire=0.0370, 2V(Calc)=32, 2V(Meas)=24-32. Dispersion strong, r < v.
Help on Pleochroism (x): Pleochroism (x):   dark bluish green.
Help on Pleochroism (y): Pleochroism (y):   colorless.
Help on Pleochroism (z): Pleochroism (z):   dark green.
 
Calculated Properties of Grandidierite

Help on Electron Density: Electron Density:   Bulk Density (Electron Density)=2.96 gm/cc
note: Specific Gravity of Grandidierite =3.01 gm/cc.
Help on Fermion Index: Fermion Index:   Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric:   PEGrandidierite = 2.74 barns/electron
U=PEGrandidierite x rElectron Density= 8.10 barns/cc.
Help on Radioactivity: Radioactivity:   GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Grandidierite is Not Radioactive

3- Musgravite (other named is Magnesiotaaffeite)

This is the world 3rd expensive gem. Gathering from Stay in Madagascar, Antarctica and Greenland.







General Grandidierite Information

Help on Chemical  Formula: Chemical Formula:   (Mg,Fe++)Al3(BO4)(SiO4)O
Help on Composition: Composition:   Molecular Weight = 296.03 gm
     Magnesium   6.16 %  Mg   10.21 % MgO
     Aluminum   27.34 %  Al   51.67 % Al2O3
     Iron        4.72 %  Fe    6.07 % FeO
     Silicon     9.49 %  Si   20.30 % SiO2
     Boron       3.65 %  B    11.76 % B2O3
     Oxygen     48.64 %  O
               ______        ______
               100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula:   Mg0.75Fe2+0.25Al3(BO4)(SiO4)O
Help on Environment: Environment:   Rare accessory mineral in aluminous boron-rich rocks, thermally and high-grade regionally metamorphosed under low pressure; in pegmatites, aplites, gneisses; in xenoliths.
Help on IMA Status: IMA Status:   Valid Species (Pre-IMA) 1902
Help on Locality: Locality:   Andrahomana, southwest of Fort Dauphin, southern Madagascar. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin:   Named for Alfred Grandidier (1836-1912), French naturalist and explorer, an authority on Madagascar.
Help on Name Pronunciation: Name Pronunciation:   Grandidierite + Pronunciation Say GRANDIDIERITE
Help on Synonym: Synonym:   ICSD 36064
    PDF 18-581
 
Grandidierite Image

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Grandidierite

Comments: Translucent blue-green crystalline grandidierite in pegmatite.
Location: Vohibola, Madagascar. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Grandidierite   Boralsilite

Comments: B&W PPL image of aggregates of boralsilite in quartz near grandidierite. Pyrite is partially replaced by oxide. Abbrev: A+B = Secondary andalusite, B = boralsilite, G = grandidierite, P = pyrite, Q = quartz. (AmMin v93:294).
Location: Pegmatites from the Larsemann Hills, East Antarctica. Scale: See Image.
© American Mineralogist

Grandidierite Crystallography

Help on Axial Ratios: Axial Ratios:   a:b:c =0.9417:1:0.5245
Help on Cell Dimensions: Cell Dimensions:   a = 10.34, b = 10.98, c = 5.76, Z = 4; V = 653.95 Den(Calc)= 3.01
Help on Crystal System: Crystal System:   Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm
Help on X Ray Diffraction: X Ray Diffraction:   By Intensity(I/Io): 5.04(1), 5.17(1), 5.48(0.,
 Click Here for Large Grandidierite Structure Window Crystal Structure:
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Stephenson D A , Moore P B , Acta Crystallographica, Section B , 24 (1968) p.1518-1522, The crystal structure of grandidierite, (Mg,Fe)Al3SiBO9, Locality: Fort Dauphin, Madagascar
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Physical Properties of Grandidierite

Help on Cleavage: Cleavage:   {100} Good, {010} Good
Help on Color: Color:   Bluish green.
Help on Density: Density:   2.976
Help on Diaphaneity: Diaphaneity:   Transparent to translucent
Help on Fracture: Fracture:   Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit:   Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness:   7.5 - Garnet
Help on Luster: Luster:   Vitreous (Glassy)
Help on Streak: Streak:   white
 
Optical Properties of Grandidierite

Help on Gladstone-Dale: Gladstone-Dale:   CI meas= -0.019 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2079,KPDmeas= 0.2102,KC= 0.2063
Ncalc = 1.61 - 1.62
Help on Optical Data: Optical Data:   Biaxial (-), a=1.602, b=1.636, g=1.639, bire=0.0370, 2V(Calc)=32, 2V(Meas)=24-32. Dispersion strong, r < v.
Help on Pleochroism (x): Pleochroism (x):   dark bluish green.
Help on Pleochroism (y): Pleochroism (y):   colorless.
Help on Pleochroism (z): Pleochroism (z):   dark green.
 
Calculated Properties of Grandidierite

Help on Electron Density: Electron Density:   Bulk Density (Electron Density)=2.96 gm/cc
note: Specific Gravity of Grandidierite =3.01 gm/cc.
Help on Fermion Index: Fermion Index:   Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric:   PEGrandidierite = 2.74 barns/electron
U=PEGrandidierite x rElectron Density= 8.10 barns/cc.
Help on Radioactivity: Radioactivity:   GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Grandidierite is Not Radioactive
 
Grandidierite Classification

Help on  Dana Class: Dana Class:   54.01.01.01 (54)Nesosilicate Borosilicates and Some Beryllosilicates
    (54.01)with (BO3)
    (54.01.01)Grandidierite Group
    
54.01.01.01 Grandidierite (Mg,Fe)Al3(BO4)(SiO4)O Pbnm 2/m 2/m 2/m
    
54.01.01.02 Ominelite! (Fe,Mg)Al3BSiO9 Pbnm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class:   09.AJ.05 09 - SILICATES (Germanates)
    09.A - Nesosilicates
    09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra,
    
09.AJ.05 Grandidierite (Mg,Fe)Al3(BO4)(SiO4)O Pbnm 2/m 2/m 2/m
    
09.AJ.05 Ominelite! (Fe,Mg)Al3BSiO9 Pbnm 2/m 2/m 2/m

4- Stornesite: This very very rarely mineral only stay in Antarctica. Taking its name from the place of it found: Stornes Peninsula, Antarctica

General Stornesite-(Y) Information

Help on Chemical  Formula: Chemical Formula:   (Y, Ca)[ ]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36
Help on Composition: Composition:   Molecular Weight = 5,318.15 gm
     Sodium       3.76 %  Na    5.06 % Na2O
     Strontium    0.02 %  Sr    0.02 % SrO
     Calcium      4.07 %  Ca    5.69 % CaO
     Yttrium      1.14 %  Y     1.44 % Y2O3
     Ytterbium    0.20 %  Yb    0.22 % Yb2O3
     Magnesium   14.04 %  Mg   23.27 % MgO
     Uranium      0.01 %  U     0.02 % UO2
     Manganese    0.19 %  Mn    0.24 % MnO
     Iron        12.14 %  Fe   15.62 % FeO
     Silicon      0.01 %  Si    0.02 % SiO2
     Phosphorus  21.10 %  P    48.34 % P2O5
     Sulfur       0.02 %  S     0.06 % SO3
     Oxygen      43.32 %  O
                ______        ______
                100.00 %      100.01 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula:   Y0.68Yb0.06U0.003Na8.69Ca5.4Sr0.01Mg30.71Fe2+11.56Mn2+0.18Si0.02S0.04P36.22O144
Help on Environment: Environment:   Found as inclusions in fluorapatite nodules in two paragneiss specimens. Y-dominant analog of the meteoritic mineral chladniite. Fillowite group.
Help on IMA Status: IMA Status:   Approved IMA 2005 (Dana # Added)
Help on Locality: Locality:   Johnston Fjord, Stornes Peninsula, Prydz Bay, East Antarctica Link to MinDat.org Location Data.
Help on Name Origin: Name Origin:   Named after the locality.
Help on Synonym: Synonym:   IMA2005-040
 
Stornesite-(Y) Image

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Stornesite-(Y)

Comments: BSE image of stornesite-(Y) (Sto) partially surrounding a spherical quartz(Qz)-biotite(Bt) aggregate in apatite (Ap). Other mineral phases include xenotime (Xnt), sillmanite Sil) and corderite (Crd). AmMin, v91, p 1416.
Location: Paragneiss specimens from Johnston Fjord, Stornes Peninsula, Antarctica. Scale: See Image.
© American Mineralogist

Stornesite-(Y) Crystallography

Help on Axial Ratios: Axial Ratios:   a:c = 1:2.85748
Help on Cell Dimensions: Cell Dimensions:   a = 14.9628, c = 42.756, Z = 3; V = 8,289.98 Den(Calc)= 3.20
Help on Crystal System: Crystal System:   Trigonal - RhombohedralH-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction:   By Intensity(I/Io): 2.73(1), 2.94(0.6), 1.84(0.4),3.52(0.4), 3.67(0.4), 2.47(0.3), 2.62(0.1), 3.18(0.1),
 Click Here for Large Stornesite-(Y) Structure Window Crystal Structure:
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Grew E S , Armbruster T , Medenbach O , Yates M G , Carson C J , American Mineralogist , 91 (2006) p.1412-1424, Stornesite-(Y), (Y, Ca)Vacancy2Na6(Ca,Na)8(Mg,Fe)43(PO4)36, the first, terrestrial Mg-dominant member of the fillowite group, from granulite-facies, paragneiss in the Larsemann Hills, Prydz Bay, East Antarctica, Locality: Larsemann Hills, Prydz Bay, East Antarctica, Note: Isostructural with chladniite
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Physical Properties of Stornesite-(Y)

Help on Cleavage: Cleavage:   None
Help on Color: Color:   Pale yellow.
Help on Diaphaneity: Diaphaneity:   Transparent
Help on Fracture: Fracture:   Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit:   Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit:   Inclusions - Generally found as inclusions in other minerals.
Help on Luster: Luster:   Vitreous (Glassy)
Help on Streak: Streak:   white
 
Optical Properties of Stornesite-(Y)

Help on Gladstone-Dale: Gladstone-Dale:   CI calc= -0.029 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1948,KC= 0.1893
Ncalc = 1.61
Help on Optical Data: Optical Data:   Uniaxial (+), w=1.6215, e=1.625, bire=0.0035.
 
Calculated Properties of Stornesite-(Y)

Help on Electron Density: Electron Density:   Bulk Density (Electron Density)=3.13 gm/cc
note: Specific Gravity of Stornesite-(Y) =3.20 gm/cc.
Help on Fermion Index: Fermion Index:   Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric:   PEStornesite-(Y) = 9.00 barns/electron
U=PEStornesite-(Y) x relectron= 28.22 barns/cc.
Help on Radioactivity: Radioactivity:   
GRapi = 1,325.13 (Gamma Ray American Petroleum Institute Units)
Concentration of Stornesite-(Y) per GRapi unit = 754.64 (PPM)

Estimated Radioactivity from Stornesite-(Y)  - mild
Specimen
Size
Weight/Volume
(Sphere) *   Calculated
Activity
Becquerels
(Bq)   Calculated
Activity
Curies (Ci)   Estimated
Activity
GR(api)   Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 8.42 cm   28,408   7.68E-07   1,325.13   0.44
100 gm / 3.91 cm   2,841   7.68E-08   132.51   0.04
10 gm / 1.81 cm   284   7.68E-09   13.25   0.00
1 gm / 8.42 mm   28   7.68E-10   1.33   0.00
0.1 gm / 3.91 mm   3   7.68E-11   0.13   0.00
0.01 gm / 1.81 mm   0   7.68E-12   0.01   0.00
0.001 gm / 0.84 mm   0   7.68E-13   0.00   0.00

Weight of pure Stornesite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.20 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 0.01 % Th) From Sum REE Elements ( 0.20 % REE)
 
Stornesite-(Y) Classification

Help on  Dana Class: Dana Class:   38.02.05.06 (38)Anhydrous Phosphates, etc
    (38.02)(A+ B++)5 (XO4)3
    (38.02.05)Fillowite Group
    
38.02.05.01 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3
    
38.02.05.02 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3
    
38.02.05.03 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3
    
38.02.05.04 Galileiite! NaFe4(PO4)3 R 3 3
    
38.02.05.05 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri
    
38.02.05.06 Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
Help on  Strunz Class: Strunz Class:   08.AC.50 08 - PHOSPHATES, ARSENATES, VANADATES
    08.A - Phosphates, etc. without additional anions, without H2O
    08.AC -With medium-sized and large cations
    
08.AC.50 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3
    
08.AC.50 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3
    
08.AC.50 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3
    
08.AC.50 Galileiite! NaFe4(PO4)3 R 3 3
    
08.AC.50 Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
    
08.AC.50 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri

5- Tasseite: discovered in the Larsemann Hills, Antarctica and only found there. It is named for Tassie Tarn on Stornes Peninsula, which has an outline resembling that of Tasmania. The mineral is a blue-green sodium-calcium-iron-magnesium phosphate containing water molecules in its crystal structure.

6- Chopinite: discovered in the Larsemann Hills, Antarctica and named for French mineralogist Christian Chopin of the École Normale Supérieure, Paris, for his major contributions to phosphate mineralogy. It is the magnesium-dominant analog of the iron-phosphate mineral sarcopside. Four grains less than 1 millimeter across in a single thin section from Brattnevet, which is located between Stornes and Broknes peninsulas, constitute  all the known terrestrial examples of chopinite; the only other occurrence is meteoritic.



Chemical Formula:   (Mg,Fe)3(PO4)2
Help on Composition: Composition:   Molecular Weight = 291.81 gm
     Calcium      0.27 %  Ca    0.38 % CaO
     Magnesium   18.32 %  Mg   30.39 % MgO
     Manganese    0.19 %  Mn    0.24 % MnO
     Iron        16.46 %  Fe   21.17 % FeO
     Silicon      0.19 %  Si    0.41 % SiO2
     Phosphorus  20.70 %  P    47.43 % P2O5
     Oxygen      43.86 %  O
                ______        ______
                100.00 %      100.03 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula:   Ca0.02Mg2.2Fe2+0.86Mn2+0.01Si0.02P1.95O8
Help on Environment: Environment:   Found in a fluorapatite segregation in a quartz mass roughly 10 cm thick and 3 m long in granulite-facies paragneiss. Mg-dominant analogue of sarcopside.
Help on IMA Status: IMA Status:   Approved IMA 2006 (Dana # Added)
Help on Locality: Locality:   Brattnevet Peninsula, Larsemann Hills, Prydz Bay, East Antarctica. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin:   Named for Christian Chopin, research director at Centre national de la recherche scientifique (CNRS).
Help on Synonym: Synonym:   IMA2006-004

7- Mélonjosephite:  a microscopic calcium-iron phosphate enclosed in apatite known from just four localities in the world other than the Larsemann Hills, Antarctica. Also found in Morocco.



Chemical Formula:   CaFe++Fe+++(PO4)2(OH)
Help on Composition: Composition:   Molecular Weight = 358.72 gm
     Calcium     11.17 %  Ca   15.63 % CaO
     Iron        31.14 %  Fe   20.03 % FeO / 22.26 % Fe2O3
     Phosphorus  17.27 %  P    39.57 % P2O5
     Hydrogen     0.28 %  H     2.51 % H2O
     Oxygen      40.14 %  O
                ______        ______
                100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula:   CaFe2+Fe3+(PO4)2(OH)
Help on Environment: Environment:   Replacing an alluaudite group mineral in a complex granite pegmatite.
Help on IMA Status: IMA Status:   Approved IMA 1973
Help on Locality: Locality:   Angarf-Sud pegmatite, Tazenakht Plain, Anti-Atlas Mountains, Morocco. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin:   Named for Joseph Melon (1898-1991), Institute of Mineralogy, University of Liege, Liege, Belgium.
Help on Name Pronunciation: Name Pronunciation:   Melonjosephite + Pronunciation Say MELONJOSEPHITE
Help on Synonym: Synonym:   ICSD 100143
    PDF 25-1454

8- Isokite: a fluorphosphate of calcium and magnesium found in microscopic veinlets cutting through wagnerite; it is known from no more than 10 localities in the world.



Chemical Formula:   CaMg(PO4)F
Help on Composition: Composition:   Molecular Weight = 178.35 gm
     Calcium     22.47 %  Ca   31.44 % CaO
     Magnesium   13.63 %  Mg   22.60 % MgO
     Phosphorus  17.37 %  P    39.79 % P2O5
     Oxygen      35.88 %  O
     Fluorine    10.65 %  F    10.65 % F
                   -   %   F    -4.49 % -O=F2   
                ______        ______
                100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula:   CaMg(PO4)F
Help on Environment: Environment:   Secondary mineral sometimes found replacing wagnerite.
Help on IMA Status: IMA Status:   Valid Species (Pre-IMA) 1955
Help on Locality: Locality:   Nkumbwa Hill, near Isoka, northern Kumbwa, Zamibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin:   Named for the locality

Information about gems and result of this Topic.

10 Gemstones Much Rarer Than Diamond

1. Benitoite Gemstones
2. Musgravite Gemstones (found in Antarctica)
3. Jadeite Gemstones
4. Bixbite Gemstones
5. Taaffeite Gemstones
6. Grandidierite Gemstones (found in Antarctica)
7. Poudretteite Gemstones
8. Painite Gemstones
9. Serendibite Gemstones
10. Jeremejevite Gemstones

Not listed:
11- Stornesite: Only found in Antarctica
12- Isokite: Only found in Antarctica
13- Tasseite: Only found in Antarctica
14- Boralsilite:  Only found in Antarctica

So who can say are they only making  researches and scientific observations?

Top 12 expensive gems in whole world:

12. Jeremejevite - $2,000 per carat


11. Fire Opal - $2,300 per carat


10. Poudretteite - $3,000 per carat


9. Benitoite - $4,000 per carat


8. Musgravite - $6,000 per carat (exist in Antarctica)


7. Red Beryl - $10,000 per carat


6. Alexandrite - $12,000 per carat


5. Diamond - $15,000 per carat


4. Serendibite - $18,000 per carat


3. Grandidierite - $20,000 per carat (exist in Antarctica)


2. Taaffeite - $35,000 per carat


1. Red Diamond - $1,000,000 per carat


If you find out something in Antarctica like this,



This is musgravite and cost of $6,000 for per carat.

And if you find out something like that:



You found out a Grandidierite that world most 3rd expensive gem who is cost of $20,000 per carat. If it about 10 carat (10 carat = 2 grams) , this means its cost about $200,000 . If you are already a rich person, you can think of it for your expenses. If you're a poor person like blackjack and rabinoz, take a step into the to be rich.

Don't forget Stornesite, Isokite, Tasseite and  Boralsilite only found in Antarctica and nobody knows the cost of them. If you a good researcher, you can find out a good one of these gems.

For you understand how they are expensive, compare cost of the cheapest one of them with gold.  12th Jeremejevite that has $2,000 per carat, is more expensive than gold  about 1000 times. And Grandidierite is more expensive than gold 10 000 times.  I hope  all of you got it now.

Hang on. I'm confused. These minerals were discovered in Antarctica? Along the icewall that goes all the way around the flat earth?

SpaceCadet, this is the information repository. It's not a debate or discussion forum.

I am not debating. I am actually confused. Were these minerals found in Antarctica?

I am not debating. I am actually confused. Were these minerals found in Antarctica?

Some of them only found in Antarctica and some others found Antarctica and some other places. I also mentioned these in every post.