＜ ＜ ＜Knowledge unit of Minerals ＞ ＞ ＞
Galena
Introduction
Physical Properties
Chemical Properties
Occurences
Notable Locality
Major Uses
Diagnostic Features

Physical Properties

Crystal System: Isometric

Crystal Form: Cubic, octahedral

Habit: Massive, granular, skeletal, stalactite

Hardness: 2.5

Cleavage / Fracture: Cubic, {100} perfect

Luster: Metallic

Color: Lead gray

Streak: Lead gray

Specific Gravity: 7.4-7.6

Other Characteristics:

(1)With a weak electric conductivity

(2)Opaque

(3)Sometimes, cubic or octahedral aggregates formed.

        

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