Formula: Ag2Pb10(Sb,As)12S29
Origin of name: for T. Sterry Hunt, Canadian mineralogist
Crystal system: orthorhombic
Crystal class: mm2 or 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: black
Diaphaneity: opaque
Luster: metallic
Habit: plumose, bundles of fibers
Hardness: 3.5
Specific gravity: 6.0
Cleavage: 1; perfect, parallel to elongation
Tenacity:
Streak: black
Synonyms/varieties:
Comments:
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