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Zircon

Zircon is an adamantine gem of various colors, with common hues white, blue, brown, and colorless. It is in high demand as a diamond substitute, so it is readily mined across to the world including Sri Lanka, Cambodia, and Madagascar. Its crystal matrix is composed of ZrSiO4, which is minimally radioactive.

Chemical Formula

ZrSiO4

BirthStone Month

December

Gemstone Mineral

Zircon

Crystal Structure

Tetragonal

Hardness

7.50

Specific Gravity

4.600 - 4.700

Double Refraction

1.777

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