IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Gruzdevite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Cu6Hg3Sb4S12
Colour:
grey-black
Lustre:
Metallic
Hardness:
4 - 4½
Specific Gravity:
5.88 (Calculated)
Crystal System:
Trigonal
Name:
For V. S. Gruzdev (1938-1977), Russian mineralogist
Isostructural with:
This page provides mineralogical data about Gruzdevite.


Hide all sections | Show all sections

Classification of GruzdeviteHide

Approved
Approval Year:
1980
2.GA.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
A : Neso-sulfarsenites, etc. without additional S
3.4.13.3

3 : SULFOSALTS
4 : ø = 3
5.4.7

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
4 : Sulpharsenites etc. of Zn and Hg

Physical Properties of GruzdeviteHide

Metallic
Transparency:
Opaque
Colour:
grey-black
Hardness:
4 - 4½ on Mohs scale
Cleavage:
None Observed
Density:
5.88 g/cm3 (Calculated)

Optical Data of GruzdeviteHide

Type:
Anisotropic
Anisotropism:
Weak
Reflectivity:
460nmR=33.1%
540nmR=32.8%
580nmR=32.7%
660nmR=31.9%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 33.1%.
Colour in reflected light:
White

Chemical Properties of GruzdeviteHide

Formula:
Cu6Hg3Sb4S12
Common Impurities:
Fe,As

Crystallography of GruzdeviteHide

Crystal System:
Trigonal
Cell Parameters:
a = 13.90(2) Å, c = 9.432 Å
Ratio:
a:c = 1 : 0.679
Unit Cell V:
1,578.21 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Massive

Type Occurrence of GruzdeviteHide

Place of Conservation of Type Material:
Fernsman Museum
Geological Setting of Type Material:
Low temperature hydrothermal
Associated Minerals at Type Locality:

Synonyms of GruzdeviteHide

Other Language Names for GruzdeviteHide

German:Gruzdevit
Spanish:Gruzdevita

Relationship of Gruzdevite to other SpeciesHide

Related Minerals - Nickel-Strunz GroupingHide

2.GA.05ProustiteAg3AsS3Trig. 3m (3 2/m) : R3c
2.GA.05PyrargyriteAg3SbS3Trig. 3m : R3c
2.GA.10PyrostilpniteAg3SbS3Mon. 2/m : P21/b
2.GA.10XanthoconiteAg3AsS3Mon. 2/m : B2/b
2.GA.15SamsoniteAg4MnSb2S6Mon. 2/m : P21/m
2.GA.20SkinneriteCu3SbS3Mon. 2/m : P21/b
2.GA.20WitticheniteCu3BiS3Orth. 2 2 2 : P21 21 21
2.GA.25LapieiteNiCuSbS3Orth.
2.GA.25MückeiteNiCu(Bi,Sb)S3Orth. 2 2 2 : P21 21 21
2.GA.25MalyshevitePdCuBiS3Orth. mmm (2/m 2/m 2/m) : Pmmm
2.GA.25LisiguangitePtCuBiS3Orth. 2 2 2 : P21 21 21
2.GA.30AktashiteCu6Hg3As4S12Trig. 3 : R3
2.GA.30NowackiiteCu6Zn3As4S12Trig. 3 : R3
2.GA.35LaffittiteAgHgAsS3Mon.
2.GA.40RouthieriteTl(Cu,Ag)(Hg,Zn)2(As,Sb)2S6Tet. 4 2m : I4 2m
2.GA.40StalderiteTl(Cu,Ag)(Zn,Fe,Hg)2(As,Sb)2S6Tet.
2.GA.45ErniggliiteTl2SnAs2S6Trig.
2.GA.50BournonitePbCuSbS3Orth. mm2 : Pmn21
2.GA.50SeligmannitePbCuAsS3Orth. mmm (2/m 2/m 2/m) : Pmmn
2.GA.50SoučekitePbCuBi(S,Se)3Orth.

Related Minerals - Dana Grouping (8th Ed.)Hide

3.4.13.1NowackiiteCu6Zn3As4S12Trig. 3 : R3
3.4.13.2AktashiteCu6Hg3As4S12Trig. 3 : R3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

5.4.1NowackiiteCu6Zn3As4S12Trig. 3 : R3
5.4.2Florensovite(Cu,Zn)Cr1.5Sb0.5S4
5.4.3AktashiteCu6Hg3As4S12Trig. 3 : R3
5.4.4LaffittiteAgHgAsS3Mon.
5.4.5Galkhaite(Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12Iso. 4 3m : I4 3m
5.4.6LivingstoniteHgSb4S6(S2)Mon. 2/m : B2/b
5.4.8TvalchrelidzeiteHg3SbAsS3Mon. 2/m
5.4.9HakiteCu6[Cu4Hg2]Sb4Se13Iso. 4 3m : I4 3m

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 GruzdeviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 67: 855.
Doklady Akademii Nauk SSSR: 261: 971-976.

Internet Links for GruzdeviteHide

Localities for GruzdeviteHide

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.
Kyrgyzstan (TL)
 
  • Osh Oblast
    • Alai Range (Alay Range)
[DAN-SSSR,(1981) 261, 971-976; Lapis 1993:11 p11-24]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
Mexico
 
  • Sonora
    • Mun. de Moctezuma
Lapis 2001(1), 11-40
Excalibur 1983
Handbook of Mineralogy
Taiwan
 
  • Taiwan Province
    • New Taipei City
      • Ruifang District
Henley, R. W., & Berger, B. R. (2012). Pyrite–sulfosalt reactions and semimetal fractionation in the Chinkuashih, Taiwan, copper–gold deposit: a 1 Ma paleo‐fumarole. Geofluids, 12(3), 245-260.
USA
 
  • Nevada
    • Eureka Co.
      • Lynn District
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 21, 2018 15:30:51 Page generated: October 4, 2018 23:01:00
Go to top of page