Formula: Ag4Pd3Te4
Origin of name: after locality Sopcha massif, Russia
Crystal system: orthorhombic
Crystal class: unknown
Twinning:
Unit cell:
Colour: gray-brown in reflected light
Diaphaneity:
Luster: metallic
Habit: small grains less than 0.02 mm
Hardness: 3.5
Specific gravity: 9.95
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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