Baumhauerite R050429



Name: Baumhauerite
RRUFF ID: R050429
Ideal Chemistry: Pb12As16S36
Locality: Binntal, Valais, Switzerland
Source: University of Arizona Mineral Museum 2862 [view label]
Owner: RRUFF
Description: Lead gray metallic with iridescent tarnish and conchoidal fracture
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Sartorite (5) ]
CHEMISTRY 
RRUFF ID: R050429.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050429
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 16% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050429.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R050429.1
Sample Description: Powder, cell parameters are from single crystal
Cell Refinement Output: a: 22.795(8)Å    b: 8.352(3)Å    c: 7.890(3)Å
alpha: 90.07(1)°    beta: 97.35(1)°    gamma: 89.89(1)°   Volume: 1490(2)Å3    Crystal System: triclinic
  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Baumhauerite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Solly R H (1902) Sulpharsenites of lead from the Binnenthal. Part III. Baumhauerite, a new mineral; and dufrenoysite, Mineralogical Magazine, 13, 151-171   [view file]

Rösch H, Hellner E (1959) Hydrothermale untersuchungen am system PbS - As2S3, Naturwissenschaften, 46, 72-72

Le Bihan M T (1961) Contribution à l'étude structurale des sulfures d'arsenic et de plomb. Structure de la baumhauerite, Acta Crystallographica, 14, 1210-1211

Engel P, Nowacki W (1969) Die kristallstruktur von baumhauerit, Zeitschrift für Kristallographie, 129, 178-202   [view file]

Pring A (1990) Disordered intergrowths in lead-arsenic sulfide minerals and the paragenesis of the sartorite-group minerals, American Mineralogist, 75, 289-294   [view file]

Pring A, Graeser S (1994) Polytipism in baumhauerite, American Mineralogist, 79, 302-307

Pring A (2001) The crystal chemistry of the sartorite group minerals from Lengenbach, Binntal, Switzerland - a HRTEM study, Schweizerische Mineralogische und Petrographische Mitteilungen, 81, 69-87

Roth P (2007) Baumhauerite, in Minerals first discovered in Switzerland and minerals named after Swiss individuals Kristallografik Verlag Achberg Germany 38-39

Topa D, Makovicky E (2016) Argentobaumhauerite: name, chemistry, crystal structure, comparison with baumhauerite, and position in the Lengenbach mineralization sequence, Mineralogical Magazine, 80, 819-840

Topa D, Kolitsch U, Makovicky E, Stanley C (2017) Écrinsite, AgTl3Pb4As11Sb9S36, a new thallium-rich homeotype of baumhauerite from the Jas Roux sulphosalt deposit, Parc national des Écrins, Hautes-Alps, France, European Journal of Mineralogy, 29, 689-700