General Gorceixite Information![]() BaAl3(PO4)(PO3OH)(OH)6 |
![]() Molecular Weight = 511.27 gm |
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Barium 26.86 % Ba 29.99 % BaO |
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Aluminum 15.83 % Al 29.91 % Al2O3 |
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Phosphorus 12.12 % P 27.76 % P2O5 |
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Hydrogen 1.38 % H 12.33 % H2O |
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Oxygen 43.81 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() BaAl3(PO4)(PO3OH)(OH)6 |
![]() Alteration of apatite in fossil bones found in Cretaceous sandstone. The original fine structure of the bone is preserved. |
![]() Valid Species (Pre-IMA) 1906 |
![]() Bauru Basin, southern Brazil. Link to MinDat.org Location Data. |
![]() Named after the French mineralogist Claude-Henri Gorceix (1842 - 1919) founder of the Mining School (Escola de Minas) in Ouro Preto. |
![]() Gorceixite + Pronunciation |
![]() ![]() Fava pebbles |
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Gorceixite Crystallography![]() a:c = 1:2.44897 |
![]() a = 7.0538, c = 17.2746, Z = 3; V = 744.36 Den(Calc)= 3.42 |
![]() Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m |
![]() By Intensity(I/Io): 3.002(1), 5.753(0.8), 3.516(0.7), |
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| Physical Properties of Gorceixite![]() None |
![]() Brown, Gray white, Sky blue, White. |
![]() 3.323 |
![]() Transparent to Translucent |
![]() Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
![]() Microscopic Crystals - Crystals visible only with microscopes. |
![]() 6 - Orthoclase |
![]() Vitreous - Dull |
![]() white |
| Optical Properties of Gorceixite![]() CI meas= 0.031 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.059 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1817,KPDmeas= 0.187,KC= 0.193 Ncalc = 1.64 - 1.66 ![]() Uniaxial (+), w=1.618, e=1.625, bire=0.0070. |
| Calculated Properties of Gorceixite![]() Bulk Density (Electron Density)=3.17 gm/cc |
note: Specific Gravity of Gorceixite =3.32 gm/cc. ![]() Fermion Index = 0.04 |
Boson Index = 0.96 ![]() PEGorceixite = 113.92 barns/electron |
U=PEGorceixite x rElectron Density= 361.32 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Gorceixite is Not Radioactive | Gorceixite Classification![]() 42.07.03.02 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.07)where (AB)5 (XO4)3 Zq · x(H2O) |
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(42.07.03)Crandallite Group |
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![]() 08.BL.10 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1 |
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| Other Gorceixite Information![]() NAME( Dana8) PHYS. PROP.(Dana8, AmMin 91:1951) OPTIC PROP.(Dana8) |
![]() Links to other databases for Gorceixite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Gorceixite using: Visit our Advertisers for Gorceixite : A Bijoux Google Search for GorceixiteAdam's Minerals Google Search for Gorceixite Cape Minerals Google Search for Gorceixite Dakota Matrix Minerals Google Search for Gorceixite Excalibur Mineral Corp. Google Search for Gorceixite Exceptional Minerals Google Search for Gorceixite John Betts Fine Minerals Search for Gorceixite McDougall Minerals Google Search for Gorceixite Mineral News Website Link Rock and Mineral Shows Google Search for Gorceixite Weinrich Minerals, Inc. Google Search for Gorceixite Ask about Gorceixite here : Print or Cut-and-Paste your Gorceixite Specimen Label here :
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