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Tazieffite

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Formula:
Pb
 
20
Cd
 
2
(As,Bi)
 
22
S
 
50
Cl
 
10
System:MonoclinicColour:silver-gray in color, ...
Name:After Haroun Tazieff (Warszawa, May 11, 1914–Paris, February 6, 1998), famous Belgian, then French volcanologist.
This page provides mineralogical data about Tazieffite.

Classification of Tazieffite

IMA status:Approved 2008
mindat.org URL:http://www.mindat.org/min-36040.html
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Type Occurrence of Tazieffite

Type Locality:Mutnovsky volcano, Kamchatka Oblast', Far-Eastern Region, Russia
General Appearance of Type Material:Tiny, slender, needle-shaped crystals, up to 400 μm long and 10 μm across, generally forming fibrous aggregates
Place of Conservation of Type Material:Fersman Museum, Moscow (catalog number 92674), and the Ecole des Mines de Paris (catalog number 78986).
Geological Setting of type material:Volcanic fumarole
Associated Minerals at type locality:
PyriteMutnovskiteKudriaviteGreenockiteGalena
CristobaliteCannizzariteAnhydrite

Physical Properties of Tazieffite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:silver-gray in color, occasionally with a magenta tint
Streak:black
Tenacity:Brittle
Density (calculated):6.07 g/cm3

Crystallography of Tazieffite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/b {B1 1 2/b} {C2/c} {C1 2/c 1}
Cell Parameters:a = 8.352Å, b = 45.592Å, c = 27.261Å
β = 98.84°
Ratio:a:b:c = 0.183 : 1 : 0.598
Unit Cell Volume:V 10,257.26 ų (Calculated from Unit Cell)
Z:4
X-Ray Powder Diffraction:
d-spacingIntensity
4.35 (21)
4.07 (39)
3.80 (53)
3.66 (24)
3.361 (65)
3.313 (100)
2.835 (39)
2.789 (36)

Optical Data of Tazieffite

Type:Anisotropic
Anisotropism:weakly
Pleochroism:Weak
Comments:dark gray to blue-gray.

Chemical Properties of Tazieffite

Formula:
Pb
 
20
Cd
 
2
(As,Bi)
 
22
S
 
50
Cl
 
10
Simplified for copy/paste:Pb20Cd2(As,Bi)22S50Cl10
Essential elements:As, Cd, Cl, Pb, S
All elements listed in formula:As, Bi, Cd, Cl, Pb, S

Other Names for Tazieffite

Synonyms:
IMA2008-012
Other Languages:
Russian:Тазиевит

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 Tazieffite

Reference List:

- +
Michael Zelenski, Anna Garavelli, Daniela Pinto, Filippo Vurro, Yves Moëlo, Luca Bindi, Emil Makovicky, and Elena Bonaccorsi (2009) Tazieffite, Pb20Cd2(As,Bi)22S50Cl10, a new chloro-sulfosalt from Mutnovsky volcano, Kamchatka Peninsula, Russian Federation. American Mineralogist, 94, 1312–1324.

Internet Links for Tazieffite

Search Engines:
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  • External Links:
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  • Look for Tazieffite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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  • Localities for Tazieffite

    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.
    (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.
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
    American Mineralogist, Volume 94, pages 1312–1324, 2009
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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