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Mineral Properties and Uses

Physical Properties of Zircon

Chemical Classification silicate
Color colorless, light brown to reddish brown, grayish, yellowish, reddish, green
Streak colorless
Luster adamantine
Diaphaneity transparent to translucent
Cleavage poor
Mohs Hardness 7.5
Specific Gravity 4.6 to 4.7
Diagnostic Properties hardness, color, specific gravity
Chemical Composition ZrSiO4
Crystal System tetragonal
Uses metals, gemstone

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