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Calvertite

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Formula:
Cu
 
5
Ge
 
0.5
S
 
4
System:Isometric
Name:Named in honor of Lauriston D. Calvert (1924-1993) of the National Research Council, Ottawa, Canada.
This page provides mineralogical data about Calvertite.

Classification of Calvertite

IMA status:Approved 2006
Strunz 8th edition ID:2/B.02-35
Strunz 9th edition ID:2.BB.10
Nickel-Strunz 10th (pending) edition ID:2.CA.15

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:2.5.2.2

2 : SULFIDES
5 : AmBnXp, with (m+n):p = 3:2
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Type Occurrence of Calvertite

Type Locality:Tsumeb, Otjikoto (Oshikoto) Region, Namibia

Crystallography of Calvertite

Crystal System:Isometric
Cell Parameters:a = 5.337Å
Unit Cell Volume:V 152.02 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
3.053 (100)
2.639 (10)
1.869 (90)
1.595 (30)

Chemical Properties of Calvertite

Formula:
Cu
 
5
Ge
 
0.5
S
 
4
Essential elements:Cu, Ge, S
All elements listed in formula:Cu, Ge, S

Relationship of Calvertite 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.10Nukundamite
(Cu,Fe)
 
4
S
 
4

Other Names for Calvertite

Synonyms:
IMA2006-030
Other Languages:

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 Calvertite

Reference List:

- +
Jambor, J.L., Roberts, A.C., Groat, L.A., Stanley, C.J., Criddle, A.J., Feinglos, M.N. (2007): Calvertite, Cu5Ge0.5S4, a new mineral species from Tsumeb, Namibia. Canadian Mineralogist, 45, 1519-1523.

Internet Links for Calvertite

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  • Raman and XRD data at RRUFF project
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    • Localities for Calvertite

    The 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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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Namibia
     
    • Otjikoto (Oshikoto) Region
    		Jambor, J.L., Roberts, A.C., Groat, L.A., Stanley, C.J., Criddle, A.J., Feinglos, M.N. (2007): Calvertite, Cu5Ge0.5S4, a new mineral species from Tsumeb, Namibia. Canadian Mineralogist, 45, 1519-1523
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