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Orientite Mineral Data + |
General Orientite Information |
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| Ca2Mn++Mn+++2Si3O10(OH)4 | |||
| Molecular Weight = 557.25 gm | |||
| Calcium 14.38 % Ca 20.13 % CaO | |||
| Manganese 29.58 % Mn 12.73 % MnO / 28.33 % Mn2O3 | |||
| Silicon 15.12 % Si 32.35 % SiO2 | |||
| Hydrogen 0.72 % H 6.47 % H2O | |||
| Oxygen 40.20 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Ca2Mn2+Mn3+2Si3O10(OH)4 | |||
| Valid Species (Pre-IMA) 1921 | |||
| Oriente Province, Cuba. Link to MinDat.org Location Data. | |||
| Named after its locality. | |||
| ICSD 201730 | |||
| PDF 41-589 | |||
Orientite Image | |||
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Orientite Crystallography |
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| a:b:c =0.6725:1:2.1172 | |||
| a = 6.08, b = 9.04, c = 19.14, Z = 4; V = 1,052.00 Den(Calc)= 3.52 | |||
| Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: C mcm | |||
| By Intensity(I/Io): 2.704(1), 4.393(0.9), 5.06(0.9), | |||
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Physical Properties of Orientite |
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| [001] Indistinct, [120] Indistinct | |||
| Brown, Black. | |||
| 3 | |||
| Translucent to opaque | |||
| Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | |||
| Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | |||
| 4-5 - Fluorite-Apatite | |||
| Vitreous (Glassy) | |||
| brown | |||
Optical Properties of Orientite |
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| Biaxial (+), a=1.758, b=1.776, g=1.795, bire=0.0370, 2V(Calc)=90, 2V(Meas)=68-83. Dispersion relatively strong. | |||
Calculated Properties of Orientite |
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relectron=3.45 gm/cc |
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| Fermion Index = 0.00744 Boson Index = 0.99256 |
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PEOrientite = 9.87 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Orientite is Not Radioactive |
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Orientite Classification |
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| 58.3.1.2 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups | |||
| (58.3)with insular single and triple groups (n=1,3) | |||
| (58.3.1)Ardennite group | |||
| VIII/C.34-20 VIII - Silicates | |||
| VIII/C - Sorosilicates, other group-silicates | |||
| VIII/C.34 - Ardennite - Orientite series | |||
Other Orientite Information |
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| NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | |||
| Links to other databases for Orientite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Orientite using: Visit our Advertisers for Orientite : Translate Orientite Mineral Data : Ask about Orientite here : Print or Cut-and-Paste your Orientite Specimen Label here :
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