Samsonite

samsonite

pyrargyrite

dyscrasite

pyrolusite

Images

Formula: Ag₄MnSb₂S₆
Valence: Ag¹⁺₄Mn²⁺Sb³⁺₂S^2-₆
Sulphantimonite of silver and manganese
Crystal system: Monoclinic
Specific gravity: 5.51 measured, 5.461 calculated
Hardness: 2½
Streak: Dark red
Colour: Black with deep red internal reflections
Common impurities: Cu,Fe
Environments

Hydrothermal environments

Localities

At the type locality, the Samson Mine, St Andreasberg, Braunlage, Goslar District, Lower Saxony, Germany, samsonite has been found as a very rare mineral in a hydrothermal vein. Associated minerals include pyrargyrite, galena, dyscrasite, tetrahedrite, pyrolusite, quartz, calcite and apophyllite (HOM).
Samsonite from the Samson Mine - Image

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