Kullerudite Mineral Data
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
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 - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnnm
X Ray Diffraction:
By Intensity(I/Io ): 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:
PEKullerudite = 69.56 barns/electronU=PEKullerudite x r Electron 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 - 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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Kullerudite
NiSe2
Dana No: 02.12.02.06 Strunz No: 02.EB.10a
Locality:
Notes:
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