Topaz 57 Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al2SiO4(F, OH)2.

It has the orthorhombic crystal system and a dipyramidial crystal class.
10/23/2024

It has the orthorhombic crystal system and a dipyramidial crystal class.

It is one of the hardest naturally occurring minerals and has a relatively low index of refraction.
10/21/2024

It is one of the hardest naturally occurring minerals and has a relatively low index of refraction.

Topaz is often treated with heat or radiation to make it a deep blue, reddish-orange, pale green, pink, or purple.
10/17/2024

Topaz is often treated with heat or radiation to make it a deep blue, reddish-orange, pale green, pink, or purple.

10/13/2024

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It is used as a gemstone in jewelry and other adornments.
10/13/2024

It is used as a gemstone in jewelry and other adornments.

10/13/2024

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