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0 item @ $0.00  

Falkmanite

#60934

Falkmanite

#60934
Availability
Sold
Size
6 x 3 x 2 cm - Sm Cabinet 
Formula
Pb3Sb2S6 (RRUFF)
Locality
Bayerland mine, Pfaffenreuth, Upper Palatinate, Bavaria, Germany
Tagged
sulfide

Falkmanite is a mineral closely related to Boulangerite but with less lead. Mindat reports that: "A solution of the crystal structure of falkmanite is necessary for its definite classification." The XRD patterns of boulangerite and falkmanite are similar. Indeed some textbooks equate it to Boulangerite. Most recent Hrysl's "Minerals and their Localities" it is listed as a unique mineral.

This specimen's splendid habit is a metallic compact fibrous mass with a beautiful silky finish.

Type Locality

Falkmanite

Formula
Pb5Sb4S11 
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Metallic 
Color
lead gray, pink brown 
Streak
brownish gray 
Class
Monoclinic 
Hardness
2-3 

Data courtesy of Webmineral.

Special Info
Type Locality

Other Sold

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