Formula: (Pb,Cd)(Fe,Cu)8S8
Origin of name: for T. Shadlun, Russian mineralogist
Crystal system: cubic
Crystal class: 4/m -3 2/m
Twinning:
Unit cell:
Colour: grayish yellow (polished section)
Diaphaneity: opaque
Luster: metallic
Habit: irregular grains smaller than 0.4 mm, veinlets smaller than 0.1 mm
Hardness: 3.5 to 4
Specific gravity: 4.72
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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