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Nukundamite

Big Photo

Ronneburg U deposit, Gera, Thuringia, Germany
© Thomas Witzke

Formula:
(Cu,Fe)
 
4
S
 
4
System:TrigonalHardness:3½
This page provides mineralogical data about Nukundamite.

Classification of Nukundamite

IMA status:Approved
Strunz 8th edition ID:2/C.22-40
Nickel-Strunz 10th (pending) edition ID:2.CA.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
A : With Cu
Dana 8th edition ID:2.9.15.1

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
Hey's CIM Ref.:3.1.30

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

Type Locality:Undu mine, Nukundamu, Vanua Levu, Fiji
Year of Discovery:1979

Physical Properties of Nukundamite

Hardness (Mohs):3½

Crystallography of Nukundamite

Crystal System:Trigonal
Cell Parameters:a = 3.77Å, c = 11.18Å
Ratio:a:c = 1 : 2.966
Unit Cell Volume:V 137.61 ų (Calculated from Unit Cell)

Chemical Properties of Nukundamite

Formula:
(Cu,Fe)
 
4
S
 
4
Essential elements:Cu, S
All elements listed in formula:Cu, Fe, S
Common Impurities:Ag,As

Relationship of Nukundamite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.CA.05aCovellite
CuS
2.CA.05bKlockmannite
CuSe
2.CA.05cSpionkopite
Cu
 
39
S
 
28
2.CA.05dYarrowite
Cu
 
9
S
 
8
2.CA.15Calvertite
Cu
 
5
Ge
 
0.5
S
 
4
Related Minerals - Hey's Index Grouping:

- +
3.1.1Chalcocite
Cu
 
2
S
3.1.2Djurleite
Cu
 
31
S
 
16
3.1.3Digenite
Cu
 
9
S
 
5
3.1.4Anilite
Cu
 
7
S
 
4
3.1.5Roxbyite
Cu
 
9
S
 
5
3.1.6Spionkopite
Cu
 
39
S
 
28
3.1.7Geerite
Cu
 
8
S
 
5
3.1.8Covellite
CuS
3.1.9Berzelianite
Cu
 
2
Se
3.1.10Bellidoite
Cu
 
2
Se
3.1.11Umangite
Cu
 
3
Se
 
2
3.1.12Yarrowite
Cu
 
9
S
 
8
3.1.13Athabascaite
Cu
 
5
Se
 
4
3.1.14Klockmannite
CuSe
3.1.15Krut'aite
CuSe
 
2
3.1.16Weissite
Cu
 
2-x
Te
3.1.17Rickardite
Cu
 
7
Te
 
5
3.1.18Vulcanite
CuTe
3.1.19Bambollaite
Cu(Se,Te)
 
2
3.1.20Lautite
CuAsS
3.1.21Mgriite
Cu
 
3
AsSe
 
3
3.1.22Cubanite
CuFe
 
2
S
 
3
3.1.23Bornite
Cu
 
5
FeS
 
4
3.1.24Fukuchilite
Cu
 
3
FeS
 
8
3.1.25Chalcopyrite
CuFeS
 
2
3.1.26Mooihoekite
Cu
 
9
Fe
 
9
S
 
16
3.1.27Haycockite
Cu
 
4
Fe
 
5
S
 
8
3.1.28Isocubanite
CuFe
 
2
S
 
3
3.1.29Idaite
Cu
 
5
FeS
 
6
3.1.31Putoranite
Cu
 
9
(Fe,Ni)
 
9
S
 
16
3.1.32Orickite
2CuFeS
 
2
·H
 
2
O
3.1.33Eskebornite
CuFeSe
 
2
3.1.34Chaméanite
(Cu,Fe)
 
4
As(Se,S)
 
4
3.1.35Talnakhite
Cu
 
9
(Fe,Ni)
 
8
S
 
16

Other Names for Nukundamite

Synonyms:
IMA1978-037
Other Languages:
German:Nukundamit
Russian:Нукундамит
Spanish:Nukundamita

Other Information

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

References for Nukundamite

Reference List:Rice, C. M., Atkin, D., Bowles, J. F. W. and Criddle, A. J. (1979): Nukundamite, a new mineral, and idaite. Mineralogical Magazine: 43: 193-200.

American Mineralogist (1980): 65: 407.

American Mineralogist (1981): 66: 398-402.

Internet Links for Nukundamite

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    Localities for Nukundamite

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