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Jamesonite
Introduction
Physical Properties
Notable Locality
Major Uses
Diagnostic Features

Physical Properties

Crystal System: Monoclinic

Crystal Form: Acicular, fibrous

Crystal Habit: Massive, plumose

Hardness: 2.5

Cleavage/Fracture: {001} good; uneven or shell-like fractures

Luster: MetallicColor: Lead-grayStreak: Lead-gray

Specific Gravity: 5.5-5.7

Other Characteristics: Opaque

        

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