Oldhamite Mineral Data + 
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- 2.8.1.1 Galena PbS F m3m 4/m 3 2/m
- 2.8.1.2 Clausthalite PbSe F m3m 4/m 3 2/m
- 2.8.1.3 Altaite PbTe F m3m 4/m 3 2/m
- 2.8.1.4 Alabandite MnS F m3m 4/m 3 2/m
- 2.8.1.5 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m
- 2.8.1.6 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m
- 2.8.1.7 Borovskite Pd3SbTe4 F m3m 4/m 3 2/m
- 2.8.1.8 Crerarite (Pt,Pb)Bi3(S,Se)4-x(x~0.7) F m3m 4/m 3 2/m
- 2.8.1.9 Keilite! (Fe,Mg)S F m3m 4/m 3 2/m
- II/C.15-05 Keilite! (Fe,Mg)S F m3m 4/m 3 2/m
- II/C.15-10 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m
- II/C.15-20 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m
- II/C.15-30 Alabandite MnS F m3m 4/m 3 2/m
- II/C.15-40 Galena PbS F m3m 4/m 3 2/m
- II/C.15-50 Clausthalite PbSe F m3m 4/m 3 2/m
- II/C.15-60 Altaite PbTe F m3m 4/m 3 2/m
- II/C.15-70 Crerarite (Pt,Pb)Bi3(S,Se)4-x(x~0.7) F m3m 4/m 3 2/m
General Oldhamite Information |
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 Chemical Formula: |
(Ca,Mg,Fe)S | ||
| Composition: |
Molecular Weight = 72.14 gm | ||
| Calcium 50.00 % Ca | |||
| Magnesium 1.68 % Mg | |||
| Iron 3.87 % Fe | |||
| Sulfur 44.45 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Ca0.9Mg0.05Fe2+0.05S | ||
| Environment: |
Fills the intersticies between silicates in enstatite chondrite and achondrite meteorites. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1862 | ||
| Locality: |
Bustee meteorite, Gorakhpur, Basti distr., Uttar Pradesh, India. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Thomas Oldham (1816-1878), Director of the Indian Geologial Survey (185o-1876). | ||
| Synonym: |
ICSD 60200 | ||
| PDF 8-464 | |||
Oldhamite Image | |||
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Images:
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Oldhamite Crystallography |
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| Cell Dimensions: |
a = 5.686, Z = 4; V = 183.83 Den(Calc)= 2.61 | ||
| Crystal System: |
Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.846(1), 2.013(0.7), 1.6439(0.21), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Oldhamite |
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| Cleavage: |
[001] Good | ||
| Color: |
Light brown, Dark brown. | ||
| Density: |
2.58 | ||
| Diaphaniety: |
Transparent | ||
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes | ||
| Hardness: |
4 - Fluorite | ||
| Luster: |
Sub Metallic | ||
Optical Properties of Oldhamite |
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| Optical Data: |
Isotropic, n=2.137. | ||
Calculated Properties of Oldhamite |
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| Electron Density: |
relectron=2.60 gm/cc |
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| Fermion Index |
Fermion Index = 0.00651 Boson Index = 0.99349 |
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| Photoelectric: |
PEOldhamite = 9.62 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Oldhamite is Not Radioactive |
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Oldhamite Classification |
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| Dana Class: |
2.8.1.5 (2)Sulfides - Including Selenides and Tellurides | ||
| (2.8)where Am Bn Xp, with (m+n):p=1:1 | |||
| (2.8.1)Galena Group (Isometric: Fm3m) | |||
| Strunz Class: |
II/C.15-20 II - Sulfides and sulphosalts | ||
| II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1 | |||
| II/C.15 - Galenite group | |||
Other Oldhamite Information |
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Oldhamite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris Search for Oldhamite using: Visit our Advertisers for Oldhamite : Translate Oldhamite Mineral Data : Ask about Oldhamite here : Print or Cut-and-Paste your Oldhamite Specimen Label here :
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