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Linnaeite

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Carl von Linné
Formula:
Co2+Co23+S4
System:
Isometric
Colour:
Grey, violet
Hardness:
4½ - 5½
Name:
Named after Carl von Linné [Carolus Linnaeus; Original swedish name: Carl Nilsson Linnæus] (1707–1778), Swedish taxonomist, botanist, physician, geologist and zoologist.

Classification of Linnaeite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
2.DA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4
2.10.1.1

2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
3.10.2

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
10 : Sulphides etc. of Co
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Type Occurrence of Linnaeite

Year of Discovery:
1845

Physical Properties of Linnaeite

Metallic
Colour:
Grey, violet
Streak:
Greyish black
Hardness (Mohs):
4½ - 5½

Crystallography of Linnaeite

Crystal System:
Isometric
Cell Parameters:
a = 9.43Å
Unit Cell Volume:
V 838.56 ų (Calculated from Unit Cell)

Optical Data of Linnaeite

Type:
Isotropic

Chemical Properties of Linnaeite

Formula:
Co2+Co23+S4
Essential elements:
All elements listed in formula:
Common Impurities:
Ni,Cu,Fe,Se

Relationship of Linnaeite to other Species

Series:
Forms a series with Polydymite (see here)
Other Members of Group:
BornhardtiteCo2+Co23+Se4
CadmoinditeCdIn2S4
CarrolliteCu(Co,Ni)2S4
Cuproiridsite(Cu,Fe)Ir2S4
CuprokalininiteCuCr2S4
Cuprorhodsite(Cu,Fe)Rh2S4
DaubréeliteFe2+Cr23+S4
Ferrorhodsite(Fe,Cu)(Rh,Ir,Pt)2S4
FletcheriteCu(Ni,Co)2S4
Florensovite(Cu,Zn)Cr1.5Sb0.5S4
GreigiteFe2+Fe23+S4
InditeFeIn2S4
KalininiteZnCr2S4
MalaniteCu(Pt3+,Ir3+)2S4
PolydymiteNi2+Ni23+S4
SiegeniteCoNi2S4
TrüstedtiteNi3Se4
TyrrelliteCu(Co3+,Ni3+)2Se4
ViolariteFe2+Ni23+S4
Xingzhongite(Pb,Cu,Fe)(Ir,Pt,Rh)2S4
2.DA.05BornhardtiteCo2+Co23+Se4
2.DA.05CarrolliteCu(Co,Ni)2S4
2.DA.05Cuproiridsite(Cu,Fe)Ir2S4
2.DA.05Cuprorhodsite(Cu,Fe)Rh2S4
2.DA.05DaubréeliteFe2+Cr23+S4
2.DA.05FletcheriteCu(Ni,Co)2S4
2.DA.05Florensovite(Cu,Zn)Cr1.5Sb0.5S4
2.DA.05GreigiteFe2+Fe23+S4
2.DA.05InditeFeIn2S4
2.DA.05KalininiteZnCr2S4
2.DA.05MalaniteCu(Pt3+,Ir3+)2S4
2.DA.05PolydymiteNi2+Ni23+S4
2.DA.05SiegeniteCoNi2S4
2.DA.05TrüstedtiteNi3Se4
2.DA.05TyrrelliteCu(Co3+,Ni3+)2Se4
2.DA.05ViolariteFe2+Ni23+S4
2.DA.05Xingzhongite(Pb,Cu,Fe)(Ir,Pt,Rh)2S4
2.DA.05Ferrorhodsite(Fe,Cu)(Rh,Ir,Pt)2S4
2.DA.05CadmoinditeCdIn2S4
2.DA.05CuprokalininiteCuCr2S4
2.DA.10RhodostanniteCu2FeSn3S8
2.DA.10ToyohaiteAg2FeSn3S8
2.DA.15BrezinaiteCr3S4
2.DA.15Heideite(Fe,Cr)1.15(Ti,Fe)2S4
2.DA.20InaglyiteCu3Pb(Ir,Pt)8S16
2.DA.20KonderiteCu3Pb(Rh,Pt,Ir)8S16
2.DA.25Kingstonite(Rh,Ir,Pt)3S4
3.10.1Cobaltpentlandite(Co,Ni,Fe)9S8
3.10.3CattieriteCoS2
3.10.4FrebolditeCoSe
3.10.5BornhardtiteCo2+Co23+Se4
3.10.6TrogtaliteCoSe2
3.10.7Hastite
3.10.8MattagamiteCoTe2
3.10.9Modderite(Co,Fe)As
3.10.10Safflorite(Co,Ni,Fe)As2
3.10.11ClinosaffloriteCoAs2
3.10.12SkutteruditeCoAs3-x
3.10.13CobaltiteCoAsS
3.10.14ParacostibiteCoSbS
3.10.15CostibiteCoSbS
3.10.16AlloclasiteCo1-xFexAsS
3.10.17Glaucodot(Co0.50Fe0.50)AsS
3.10.18CarrolliteCu(Co,Ni)2S4

Other Names for Linnaeite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Linnaeite

Reference List:
Beudant (1832): 2: 417 (as koboldine).

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 262-265.

Mineralogical Magazine (1980): 43: 734.

Internet Links for Linnaeite

Localities for Linnaeite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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