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Samsonite (mineral)

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Samsonite (mineral)

Samsonite
Samsonite crystal from its type locality Samson Mine, St. Andreasberg, Harz, Germany
General
Category Sulfide minerals
Formula
(repeating unit)
Ag4MnSb2S6
Strunz classification 02.GA.15
Crystal symmetry 2/m - Prismatic
Unit cell

a = 10.3861(6) Å, b = 8.1108(7) Å, c = 6.663(7) Å

β = 92.639(12)°, Z = 2
Identification
Color Black
Crystal system Monoclinic
Mohs scale hardness
Luster Metallic
Diaphaneity Opaque
Specific gravity 5.461 (calculated)
References [1][2][3]

Samsonite is a silver manganese antimony sulfosalt mineral with formula Ag4MnSb2S6. It crystallizes in the monoclinic crystal system with a typical slender radiating prismatic habit. It is metallic black to steel black with no cleavage and a brittle to conchoidal fracture. In thin fragments it appears reddish brown in transmitted light and also leaves a red streak. It is soft, Mohs hardness of 2.5, and has a specific gravity of 5.51.

It was first named in 1910 after an occurrence in the Samson Vein of the Sankt Andreasberg silver mines, Harz Mountains, Germany.

See also

References

  1. ^ Mindat.org
  2. ^ Webmineral data
  3. ^ Mineral Data Publishing - PDF
  • Palache, C., H. Berman, and C. Frondel (1944) Dana’s system of mineralogy, (7th edition), v. I, pp. 393–395


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