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Vavřínite

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Formula:
Ni2SbTe2
Colour:
silvery grey
Lustre:
Metallic
Hardness:
2
Specific Gravity:
7.79
Crystal System:
Hexagonal
Name:
Named in honor of Ivan Vavřín (1937-), analytical chemist at the Czech Geological Survey and one of the discoverers of the mineral, in recognition of his investigations of tellurium minerals and significant contributions to research on Cu-Ni sulfide deposits. He earned his CSc (Ph.D.) from the Academy of Science, Prague.
Unique combination of elements. To date, only one sample of this species is known.

Properties were determined from synthetic material.

Note: chemically identical phase, previously coded as UM1974-22-Te:NiSb in the Valid Unnamed Minerals list, was reported from Southwestern China.


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Classification of VavříniteHide

Approved
Approval Year:
2005
2.CC.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.

Physical Properties of VavříniteHide

Metallic
Transparency:
Opaque
Colour:
silvery grey
Hardness:
Hardness:
VHN10=92 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
probably parallel to {0001}
Density:
7.79 g/cm3 (Measured)     7.88 g/cm3 (Calculated)

Optical Data of VavříniteHide

Type:
Anisotropic
Anisotropism:
strong
Bireflectance:
weak
Colour in reflected light:
white-cream
Internal Reflections:
none
Pleochroism:
Weak
Comments:
slightly light brownish to slightly brown. A pink shade may also be observed

Chemical Properties of VavříniteHide

Formula:
Ni2SbTe2

Crystallography of VavříniteHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Cell Parameters:
a = 3.9115(2) Å, c = 15.6820(9) Å
Ratio:
a:c = 1 : 4.009
Unit Cell V:
207.79 ų (Calculated from Unit Cell)
Z:
2

Type Occurrence of VavříniteHide

General Appearance of Type Material:
single grains to a few µm in diameter, included in pyrrhotite
Place of Conservation of Type Material:
National Museum, Prague, Czech Republic, under catalogue number P1p 10/2005
Geological Setting of Type Material:
Cu-Ni deposit
Associated Minerals at Type Locality:

Synonyms of VavříniteHide

Other Language Names for VavříniteHide

German:Vavřínit

Relationship of Vavřínite to other SpeciesHide

Related Minerals - Nickel-Strunz GroupingHide

2.CC.UM2007-26-S:CuFeIrNiPtRh(Ir,Cu,Ni,Pt,Rh,Fe)9S11
2.CC.05Achávalite(Fe,Cu)SeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05BreithauptiteNiSbHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05FrebolditeCoSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05KotulskitePd(Te,Bi)Hex.
2.CC.05Langisite(Co,Ni)AsHex. 6 : P63
2.CC.05NickelineNiAsHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
2.CC.05Sederholmitebeta-NiSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.05SobolevskitePd(Bi,Te)Hex.
2.CC.05StumpflitePt(Sb,Bi)Hex.
2.CC.05Sudburyite(Pd,Ni)SbHex.
2.CC.05JaipuriteCoSHex.
2.CC.05ZlatogoriteNiCuSb2Trig.
2.CC.10PyrrhotiteFe7S8Mon.
2.CC.10Smythite(Fe,Ni)3+xS4 (x=0-0.3)Trig. 3m (3 2/m) : R3m
2.CC.10TroiliteFeSHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
2.CC.15CherepanoviteRhAsOrth. mmm (2/m 2/m 2/m) : Pnma
2.CC.15Modderite(Co,Fe)AsOrth.
2.CC.15Ruthenarsenite(Ru,Ni)AsOrth.
2.CC.15Westerveldite(Fe,Ni,Co)AsOrth.
2.CC.20MilleriteNiSTrig. 3m : R3m
2.CC.20Mäkineniteγ-NiSeTrig.
2.CC.20UM1990-38-S:CuFeIrNiPtRh(Ni,Fe,Rh,Cu,Ir,Pt)S
2.CC.25Mackinawite(Fe,Ni)9S8Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
2.CC.30Hexatestibiopanickelite(Pd,Ni)(Sb,Te)Hex.
2.CC.35aBraggite(Pt,Pd,Ni)STet.
2.CC.35bCooperitePtSTet. 4/mmm (4/m 2/m 2/m) : P42/mmc
2.CC.35aVysotskite(Pd,Ni)STet.

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 VavříniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vavřín I., Frýda J. (1998) Věštník ČGÚ: 73: 177-180.
Laufek, F., Drábek, M., Skála, R., Císařová, I. (2004) Crystal structure determination of new phase Ni2SbTe2 from Kunratice near Šluknov (Czech Republic). EPIDIC IX, Poster 131.
Laufek, F., Drábek, M., Skála, R., Haloda, J., Táborský, Z., Císařová, I. (2007) Vavřínite, Ni2SbTe2, a New Mineral Species from the Kunratice Cu–Ni Sulfide Deposit, Czech Republic. The Canadian Mineralogist: 45(5): 1213-1219.
Platinum Metal Mineral Research Group, Microprobe Analysis Laboratory, X-ray Powder Photograph Laboratory, and Mineral Dressing Laboratory, Kweiyang Institute of Geochemistry, Academia Sinica (1974) Tellurostibnide of palladium and nickel and other new minerals and varieties of platinum metals. Geochimica: 3: 169-l8l (in Chinese, with English abstract).
Fleischer, M., Pabst, A., Mandarino, J.A., Chao, G.Y., Cabri, L.J. (1976) New mineral names. American Mineralogist: 61: 182 (concerns UM1974-22-Te:NiSb).
Smith, D.G.W., Nickel, E.H. (2007) A System of Codification for Unnamed Minerals: Report of the SubCommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification. Canadian Mineralogist: 45: 983-1055; http://nrmima.nrm.se/Valid2009_03.pdf (2016) (concerns UM1974-22-Te:NiSb)

Internet Links for VavříniteHide

Localities for VavříniteHide

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.
China
 
Platinum Metal Mineral Research Group, Microprobe Analysis Laboratory, X-ray Powder Photograph Laboratory, and Mineral Dressing Laboratory, Kweiyang Institute of Geochemistry, Academia Sinica (1974): Tellurostibnide of palladium and nickel and other new minerals and varieties of platinum metals. Geochimica: 3: 169-l8l (in Chinese, with English abstract); in: Fleischer, M., Pabst, A., Mandarino, J.A., Chao, G.Y., Cabri, L.J. (1976): New mineral names. American Mineralogist: 61: 182
Czech Republic (TL)
 
  • Ústí Region
    • Šluknov (Schluckenau)
Laufek, F., Drábek, M., Skála, R., Haloda, J., Táborský, Z., & Císařová, I. (2007). Vavřínite, Ni2SbTe2, a New Mineral Species from the Kunratice Cu–Ni Sulfide Deposit, Czech Republic. The Canadian Mineralogist, 45(5), 1213-1219.
USA
 
  • Pennsylvania
    • Chester Co.
      • State Line Chromite District
Smith and Barnes (2011) Pennsylvania Geology v. 41, no. 3/4.
Mineral and/or Locality  
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