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

Physical Properties

Crystal System: Monoclinic

Crystal Form: Columnar or acicular

Habit: Granular or massive

Hardness: 1.5-2

Cleavage / Fracture: {010} perfect cleavage ;{_101};{100};{120}

Indistinct Fracture: Conchoidal

Luster: Adamantine

Color: Red or orange-red

Streak: Light orange to red

Specific Gravity: 3.48

Other Characteristics:

(1) Transparent to translucent

(2) Striated surface

(3) Strong garlic smell when heated

(4) Resinous luster at the facture

        

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