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Chvilevaite

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Formula:
Na(Cu,Fe,Zn)2S4
Colour:
Bronze
Lustre:
Metallic
Hardness:
3
Specific Gravity:
3.94 (Calculated)
Crystal System:
Trigonal
Name:
Named in 1988 by V. M. Kacholovskaya, B. S. Osipov, N. G. Nazarenko, V. A. Kukoev, A. O., Mazmanyan, I. N. Egorov, and L. N. Kaplunnik in honor of Tat'iana Nikiforovna Chvileva (1925-), Russian mineralogist.
This page provides mineralogical data about Chvilevaite.


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Classification of ChvilevaiteHide

Approved
2.FB.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
B : With alkalies (without Cl, etc.)
2.5.9.1

2 : SULFIDES
5 : AmBnXp, with (m+n):p = 3:2
3.0.3

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

Physical Properties of ChvilevaiteHide

Metallic
Transparency:
Opaque
Colour:
Bronze
Comment:
Tarnishes sooty black
Hardness:
Hardness:
VHN20=110 - 153 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
on {0001}
Density:
3.94 g/cm3 (Calculated)

Optical Data of ChvilevaiteHide

Type:
Anisotropic
Anisotropism:
Strong from black to white
Colour in reflected light:
Orange changing to rosy purple with time
Pleochroism:
Visible
Comments:
From light orange to dark gray with violet tint.

Chemical Properties of ChvilevaiteHide

Formula:
Na(Cu,Fe,Zn)2S4
IMA Formula:
Na(Cu,Fe,Zn)2S2
Common Impurities:
Ca,Mn,As

Crystallography of ChvilevaiteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 3.873(1) Å, c = 6.848(1) Å
Ratio:
a:c = 1 : 1.768
Unit Cell V:
88.96 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Tabular, prismatic and equant grains to 0.5mm

Type Occurrence of ChvilevaiteHide

Place of Conservation of Type Material:
Fernsman Museum
Geological Setting of Type Material:
Hydrothermal veins
Associated Minerals at Type Locality:

Synonyms of ChvilevaiteHide

Other Language Names for ChvilevaiteHide

Related Minerals - Nickel-Strunz GroupingHide

2.FB.05CaswellsilveriteNaCrS2Trig. 3m (3 2/m) : R3m
2.FB.05SchöllhorniteNa0.3CrS2 · H2OTrig.
2.FB.05CronusiteCa0.2CrS2 · 2 H2OTrig. 3m : R3m
2.FB.15Orickite2CuFeS2 · H2OHex.
2.FB.20RasvumiteKFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
2.FB.20PautoviteCsFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
2.FB.25ColimaiteK3VS4Orth. mmm (2/m 2/m 2/m) : Pnma

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.0.1ErditeNaFeS2 · 2H2OMon. 2/m : B2/b
3.0.2CoyoteiteNaFe3S5 · 2H2OTric.
3.0.4RasvumiteKFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
3.0.5BartoniteK6Fe20S26STet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.0.6MurunskiteK2(Cu,Fe)4S4Tet.

Other InformationHide

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 ChvilevaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 74: 946.
V. M. Kacholovskaya, B. S. Osipov, N. G. Nazarenko, V. A. Kukoev, A. O., Mazmanyan, I. N. Egorov, and L. N. Kaplunnik (1988) Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 117(2): 204-207.
Doklady Akademii Nauk SSSR: 310: 90-93.

Internet Links for ChvilevaiteHide

Localities for ChvilevaiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Eastern-Siberian Region
    • Transbaikalia (Zabaykalye)
      • Chitinskaya Oblast'
        • Akatui
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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