Kullerudite Mineral Data

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General Kullerudite Information

Chemical Formula:

NiSe2

Composition:

Molecular Weight = 216.61 gm

Nickel 27.09 % Ni

Selenium 72.91 % Se

______

100.00 %

Empirical Formula:

NiSe₂

Environment:

In calcite veins in sills of albite diabase in schist, associated with low-grade uranium mineralization, almost exclusively as an alteration product of wilkmanite.

IMA Status:

Approved IMA 1964

Locality:

Kuusamo, northeastern Findland. Link to MinDat.org Location Data.

Name Origin:

Named for Gunner Kullerud, Geophisical Laboratory, Washington, D.C., USA.

Name Pronunciation:

Kullerudite + Pronunciation

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Kullerudite Crystallography

Axial Ratios:

a:b:c =0.8204:1:0.6157

Cell Dimensions:

a = 4.89, b = 5.96, c = 3.67, Z = 2; V = 106.96 Den(Calc)= 6.73

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm

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

By Intensity(I/I_o): 2.545(1), 2.64(1), 2.935(0.8),

Physical Properties of Kullerudite

Color:

Lead gray.

Density:

6.72

Diaphaneity:

Opaque

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

5.5-6.5 - Knife Blade-Pyrite

Luster:

Metallic

Optical Properties of Kullerudite

RL Anisotrophism:

Very strong, yellowish gray to gray to almost black.

RL Color:

Creamy grayish white, paler than penroseite.

RL Pleochroism:

Distinct in oil, gray to pale gray.

Calculated Properties of Kullerudite

Electron Density:

Bulk Density (Electron Density)=5.97 gm/cc
note: Specific Gravity of Kullerudite =6.73 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_Kullerudite= 69.56 barns/electron
U=PE_Kullerudite x rElectron Density= 414.97 barns/cc.

Radioactivity:

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

Kullerudite Classification

Dana Class:

02.12.02.06 (02)Sulfides - Including Selenides and Tellurides

(02.12)where Am Bn Xp, with (m+n):p=1:2

(02.12.02)Marcasite Group (Orthorhombic: Pnnm)

02.12.02.01 Marcasite FeS2 Pnnm 2/m 2/m 2/m

02.12.02.02 Ferroselite FeSe2 Pnnm 2/m 2/m 2/m

02.12.02.03 Frohbergite FeTe2 Pnnm 2/m 2/m 2/m

02.12.02.04 Hastite? CoSe2 Pnnm 2/m 2/m 2/m

02.12.02.05 Mattagamite CoTe2 Pnnm 2/m 2/m 2/m

02.12.02.06 Kullerudite NiSe2 Pnnm 2/m 2/m 2/m

02.12.02.07 Omeiite (Os,Ru)As2 Pnnm 2/m 2/m 2/m

02.12.02.08 Anduoite (Ru,Os)As2 Pnnm 2/m 2/m 2/m

02.12.02.09 Lollingite FeAs2 Pnnm 2/m 2/m 2/m

02.12.02.10 Seinajokite (Fe,Ni)(Sb,As)2 Pnnm 2/m 2/m 2/m

02.12.02.11 Safflorite (Co,Fe)As2 Pnnm 2/m 2/m 2/m

02.12.02.12 Rammelsbergite NiAs2 Pnnm 2/m 2/m 2/m

02.12.02.13 Nisbite NiSb2 Pnnm 2/m 2/m 2/m

Strunz Class:

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

02.E - Metal Sulfides, M:S £ 1:2

02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.

02.EB.10a Frohbergite FeTe2 Pnnm 2/m 2/m 2/m

02.EB.10a Hastite? CoSe2 Pnnm 2/m 2/m 2/m

02.EB.10a Ferroselite FeSe2 Pnnm 2/m 2/m 2/m

02.EB.10a Kullerudite NiSe2 Pnnm 2/m 2/m 2/m

02.EB.10a Mattagamite CoTe2 Pnnm 2/m 2/m 2/m

02.EB.10a Marcasite FeS2 Pnnm 2/m 2/m 2/m

Other Kullerudite Information

References:

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

See Also:

Links to other databases for Kullerudite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Kullerudite Specimen Label here :

Kullerudite

NiSe2
Dana No: 02.12.02.06 Strunz No: 02.EB.10a
Locality:

Notes: