Oldhamite Mineral Data (original) (raw)

General Oldhamite Information

Help on Chemical Formula: Chemical Formula:

(Ca,Mg,Fe)S

Help on Composition: Composition:

Molecular Weight = 72.14 gm

Calcium 50.00 % Ca

Magnesium 1.68 % Mg

Iron 3.87 % Fe

Sulfur 44.45 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Ca0.9Mg0.05Fe2+0.05S

Help on Environment: Environment:

Fills the intersticies between silicates in enstatite chondrite and achondrite meteorites.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1862

Help on Locality: Locality:

Bustee meteorite, Gorakhpur, Basti distr., Uttar Pradesh, India. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Thomas Oldham (1816-1878), Director of the Indian Geologial Survey (185o-1876).

Help on Name Pronunciation: Name Pronunciation:

Oldhamite + Pronunciation Say OLDHAMITE

Help on Synonym: Synonym:

ICSD 60200

PDF 8-464

Oldhamite Image

Click Here for Larger Oldhamite Image in a New Browser Window Images:

Oldhamite Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 5.686, Z = 4; V = 183.83 Den(Calc)= 2.61

Help on Crystal System: Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.846(1), 2.013(0.7), 1.6439(0.21),

Click Here for Large Oldhamite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
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| | Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, rocksalt structure | | ------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Oldhamite

Help on Cleavage: Cleavage:

{001} Good

Help on Color: Color:

Light brown, Dark brown.

Help on Density: Density:

2.58

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Habit: Habit:

Anhedral Grains - Granular minerals without the expression of crystal shapes

Help on Hardness: Hardness:

4 - Fluorite

Help on Luster: Luster:

Sub Metallic

Optical Properties of Oldhamite

Help on Optical Data: Optical Data:

Isotropic, n=2.137.

Calculated Properties of Oldhamite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.60 gm/cc
note: Specific Gravity of Oldhamite =2.61 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0065135547
Boson Index = 0.9934864453

Help on Photoelectric: Photoelectric:

PEOldhamite = 9.62 barns/electron
U=PEOldhamite x rElectron Density= 24.98 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Oldhamite is Not Radioactive

Oldhamite Classification

Help on Dana Class: Dana Class:

02.08.01.05 (02)Sulfides - Including Selenides and Tellurides

(02.08)where Am Bn Xp, with (m+n):p=1:1

(02.08.01)Galena Group (Isometric: Fm3m)

02.08.01.01 Galena PbS F m3m 4/m 3 2/m

02.08.01.02 Clausthalite PbSe F m3m 4/m 3 2/m

02.08.01.03 Altaite PbTe F m3m 4/m 3 2/m

02.08.01.04 Alabandite MnS F m3m 4/m 3 2/m

02.08.01.05 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m

02.08.01.06 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m

02.08.01.07 Borovskite Pd3SbTe4 F m3m 4/m 3 2/m

02.08.01.08 Crerarite (Pt,Pb)Bi3(S,Se)4-x(x~0.7) F m3m 4/m 3 2/m

02.08.01.09 Keilite! (Fe,Mn,Mg,Ca,Cr)S F m3m 4/m 3 2/m

Help on Strunz Class: Strunz Class:

02.CD.10 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.C - Metal Sulfides, M:S = 1:1 (and similar)

02.CD -With Sn, Pb, Hg, etc.

02.CD.10 Alabandite MnS F m3m 4/m 3 2/m

02.CD.10 Altaite PbTe F m3m 4/m 3 2/m

02.CD.10 Galena PbS F m3m 4/m 3 2/m

02.CD.10 Clausthalite PbSe F m3m 4/m 3 2/m

02.CD.10 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m

02.CD.10 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m

02.CD.10 Keilite! (Fe,Mn,Mg,Ca,Cr)S F m3m 4/m 3 2/m

Other Oldhamite Information

Help on References: References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

Links to other databases for Oldhamite :
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

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Ask about Oldhamite here :
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Print or Cut-and-Paste your Oldhamite Specimen Label here :

Oldhamite

(Ca,Mg,Fe)S
Dana No: 02.08.01.05 Strunz No: 02.CD.10
Locality:

Notes: