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|Pb is necessary for the stabilisation of the cubic structure of schapbachite.|
|Hardness:||3 - 4|
|Name:||Named after the locality where it was originally thought to have existed as a species. The original specimens were found to be a mixture of galena and matildite (Ramdohr, 1936). Redefined in 1982 and retained the original name, but not confirmed in nature until 2004 (Walenta).|
Note: many specimens originally described as "schapbachite" are in fact matildite.
Classification of Schapbachite
|IMA status:||Approved 1982|
|Explanation of status:||Redefined by CNMMN (1982) as the high-temperature dimorph of matildite (above 200 deg. C). Described as a natural (ambient temperature) phase by Walenta et al. (2004).|
|Strunz 8th edition ID:||2/C.16-35|
|Nickel-Strunz 10th (pending) edition ID:||2.JA.15|
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
|Hey's CIM Ref.:||5.2.18|
5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
2 : Sulpharsenites etc. of Ag
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Type Occurrence of Schapbachite
|Type Locality:||Silberbrünnle Mine, Haigerach valley, Gengenbach, Black Forest, Baden-Württemberg, Germany|
Physical Properties of Schapbachite
|Hardness (Mohs):||3 - 4|
Crystallography of Schapbachite
Optical Data of Schapbachite
Chemical Properties of Schapbachite
Pb is necessary for the stabilisation of the cubic structure of schapbachite.
|Essential elements:||Ag, Bi, Pb, S|
|All elements listed in formula:||Ag, Bi, Pb, S|
Relationship of Schapbachite to other Species
|Structurally related to group(s):|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Schapbachite
|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 Schapbachite
Sandberger, F. (1882): Untersuch. Erzgadhge, 1, 90.
Ramdohr, P.(1936): Fortschr. Min. Krist. 20,56.
American Mineralogist (1951): 36: 436.
Acta Crystallographica (1959): 12:46.
American Mineralogist (1975): 60: 621.
Ramdohr, P. (1980), The Ore Minerals and their Intergrowths, 2nd edition: 665.
Hey, M.H. (1982): Mineralogical Magazine, 46, 513-514 [redefinition].
Walenta, K.; Bernhardt, H.-J. & Theye, T. (2004): Cubic AgBiS2 (schapbachite) from the Silberbrünnle mine near Gengenbach in the Central Black Forest, Germany. Neues Jahrbuch für Mineralogie, Monatshefte 2004, 425-432.
Moëlo, Y., Makovicky, E., Mozgova, N.N., Jambor, J.L., Cook, N., Pring, A., Paar, W., Nickel, E.H., Graeser, S., Karup-Møller, S.; Balić-Žunić, T.; Mumme, W.G., Vurro, F., Topa, D., Bindi, L., Bente, K., Shimizu, M. (2008): Sulfosalt systematics: a review. Report of the sulfosalt sub-committee of the IMA Commission on Ore Mineralogy. European Journal of Mineralogy, 20, 7-46.
Internet Links for Schapbachite
Localities for Schapbachite
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.
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