Niningerite Mineral Data

General Niningerite Information

Chemical Formula:

(Mg,Fe++,Mn)S

Composition:

Molecular Weight = 68.90 gm

Magnesium 21.17 % Mg

Manganese 7.97 % Mn

Iron 24.32 % Fe

Sulfur 46.54 % S

______

100.00 %

Empirical Formula:

Mg_0.6Fe²⁺_0.3Mn²⁺_0.1S

Environment:

In less extensively metamorphosed enstatite chondrite meteorites intergrown with kamacite and troilite.

IMA Status:

Approved IMA 1967

Locality:

In the Abee, Saint-Suveur, Adhi-Kot, Indarch, St. Marks, Qingzhen, and Kota-Kota enstatite chondrite meteorites. Link to MinDat.org Location Data.

Name Origin:

Named for Harvey Harlow Nininger (1887-1986), of Sedona Arizona, USA for his contributions to meteorite studies.

Name Pronunciation:

Niningerite + Pronunciation

Synonym:

ICSD 30241

PDF 35-730

Niningerite Image

Images:

Niningerite

Comments: PPL reflected light polished section showing light gray-brownish grains of troilite (Tr) with white niningerite (Nin) and dark silicates.
Location: Indarch meteorite, Shusha, Elizavetpol, Azerbaidshan. Scale: Picture Size 0.28 mm.
© Thomas Witzke

Niningerite Crystallography

Cell Dimensions:

a = 5.17, Z = 4; V = 138.19 Den(Calc)= 3.31

Crystal System:

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

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.601(1), 1.8388(0.6), 1.501(0.16),

Physical Properties of Niningerite

Color:

Gray.

Diaphaneity:

Opaque

Habit:

Inclusions - Generally found as inclusions in other minerals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

3.5-4 - Copper Penny-Fluorite

Luster:

Metallic

Optical Properties of Niningerite

RL Color:

Gray.

Calculated Properties of Niningerite

Electron Density:

Bulk Density (Electron Density)=3.22 gm/cc
note: Specific Gravity of Niningerite =3.31 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Niningerite= 12.23 barns/electron
U=PE_Niningerite x rElectron Density= 39.37 barns/cc.

Radioactivity:

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

Niningerite Classification

Dana Class:

02.08.01.06 (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

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 Niningerite Information

References:

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

See Also:

Links to other databases for Niningerite :
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

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Niningerite

(Mg,Fe++,Mn)S
Dana No: 02.08.01.06 Strunz No: 02.CD.10
Locality:

Notes:

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