[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store] See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM] Rare Minerals, Meteorites, Equipment and Analytical Services Excalibur Mineral Company, World leaders in the supply of rare species Serving the scientific and collector communities since 1974 General Yaroslavite InformationCa3Al2F10(OH)2•(H2O) |
Molecular Weight = 416.21 gm |
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Calcium 28.89 % Ca 40.42 % CaO |
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Aluminum 12.97 % Al 24.50 % Al2O3 |
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Hydrogen 0.97 % H 8.66 % H2O |
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Oxygen 11.53 % O |
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Fluorine 45.65 % F 45.65 % F |
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- %
F -19.22 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Ca3Al2F10(OH)2•(H2O) |
In banded fluorite-sellaite-tournaline ores. |
Approved IMA 1966 |
Yaroslav, Siberia, Russia. Link to MinDat.org Location Data. |
Named for the locality. |
Yaroslavite + Pronunciation |
| | Search for Yaroslavite Images
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| | Yaroslavite Crystallographya:b:c =1.5804:1:0.8155 |
a = 8.74, b = 5.53, c = 4.51, Z = 1; V = 217.98 Den(Calc)= 3.17 |
OrthorhombicSpace Group: Unk |
By Intensity(I/Io): 3.445(1), 2.222(0.8), 3.653(0.7), |
| Physical Properties of Yaroslavite{???} Good, {???} Good |
White. |
3.09 |
Transparent |
Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern. |
Fibrous - Crystals made up of fibers. |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
Spherical - Spherical, rounded aggregates. |
4.5 - Between Fluorite and Apatite |
Weakly Fluorescent, Short UV=pale violet. |
Vitreous (Glassy) |
white |
| Optical Properties of YaroslaviteBiaxial (-), a=1.413, b=1.416-1.417, g=1.423, bire=0.0100, 2V(Calc)=68-80, 2V(Meas)=74. |
| Calculated Properties of YaroslaviteBulk Density (Electron Density)=3.11 gm/cc |
note: Specific Gravity of Yaroslavite =3.17 gm/cc. Fermion Index = 0.0004467921 |
Boson Index = 0.9995532079 PEYaroslavite = 4.23 barns/electron |
U=PEYaroslavite x rElectron Density= 13.14 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Yaroslavite is Not Radioactive | Yaroslavite Classification11.06.15.01 (11)Halide Complexes; Alumino-fluorides |
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(11.06)with miscellaneous formulae |
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(11.06.15)Dana Group |
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03.CB.50 03 - HALIDES |
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03.C - Complex Halides |
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03.CB -Neso-aluminofluorides |
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| Other Yaroslavite InformationNAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
Links to other databases for Yaroslavite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Yaroslavite using: Visit our Advertisers for Yaroslavite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Yaroslavite Mineral Data : Ask about Yaroslavite here : Print or Cut-and-Paste your Yaroslavite Specimen Label here :
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