[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 Collinsite InformationCa2(Mg,Fe++)(PO4)2•2(H2O) |
Molecular Weight = 338.32 gm |
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Calcium 23.69 % Ca 33.15 % CaO |
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Magnesium 5.39 % Mg 8.93 % MgO |
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Iron 4.13 % Fe 5.31 % FeO |
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Phosphorus 18.31 % P 41.96 % P2O5 |
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Hydrogen 1.19 % H 10.65 % H2O |
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Oxygen 47.29 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Ca2Mg0.75Fe2+0.25(PO4)2•2(H2O) |
Secondary weathering product typically incrusting other minerals. |
Valid Species (Pre-IMA) 1927 |
Francois Lake, south of Babine Lake, Coast district, British Columbia, and as large crystals from the Big Fish River–Rapid Creek area, Yukon Territory, Canada. Link to MinDat.org Location Data. |
Named for William Henry Collins (1878-1937), formerly Director of the Geological Survey of Canada. |
Collinsite + Pronunciation |
ICSD 4258 |
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PDF 26-1063 |
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Collinsite Crystallographya:b:c =0.8457:1:0.8025 |
a = 5.734, b = 6.78, c = 5.441, Z = 1; alpha = 97.29°, beta = 108.56°, gamma = 107.28° V = 189.93 Den(Calc)= 2.96 |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
By Intensity(I/Io): 3.04(1), 2.682(0.9), 2.713(0.8), |
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| Physical Properties of Collinsite{001} Perfect, {010} Perfect |
Colorless, White, Light brown. |
2.95 |
Transparent to Translucent |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
3-3.5 - Calcite-Copper Penny |
Non-fluorescent. |
Silky |
white |
| Optical Properties of CollinsiteCI meas= -0.037 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2124,KPDmeas= 0.2182,KC= 0.2105 Ncalc = 1.62 - 1.64 Biaxial (+), a=1.632, b=1.642, g=1.657, bire=0.0250 |
| Calculated Properties of CollinsiteBulk Density (Electron Density)=3.04 gm/cc |
note: Specific Gravity of Collinsite =3.03 gm/cc. Fermion Index = 0.0068115336 |
Boson Index = 0.9931884664 PECollinsite = 5.11 barns/electron |
U=PECollinsite x rElectron Density= 15.51 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Collinsite is Not Radioactive | Collinsite Classification40.02.02.03 (40)Hydrated Phosphates, etc |
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(40.02)where A++ (B++)2 (XO4) · x(H2O) |
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(40.02.02)Fairfieldite Subgroup (Triclinic: P-1¯) |
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08.CG.05 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.C - Phosphates without Additional Anions, with H2O |
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08.CG -With large and medium-sized cations, RO4:H2O = 1:1 |
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| Other Collinsite InformationNAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Collinsite : |
1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - MinMax(Deutsch) 12 - MinMax(English) 13 - Mineralienatlas (Deutsch) 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - WWW-MINCRYST Search for Collinsite using: Visit our Advertisers for Collinsite : 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 Collinsite Mineral Data : Ask about Collinsite here : Print or Cut-and-Paste your Collinsite Specimen Label here :
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