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Tanzanite
Tanzanite

Amethyst
Amethyst



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Tanzanite
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Amethyst

Tanzanite and Amethyst Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
insoluble in common solvents

Durability

Hard
-

Specific Gravity

3.352.65
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Conchoidal, ConchoidalWalter Schumann

Cleavage

Perfect {010}, imperfect {100}
Indiscernible

Mohs Hardness

6.5-77
2 10
👆🏻

Chemical Composition

Ca2Al3(SiO4)3(OH)
SiO2

Tanzanite and Amethyst Chemical Formula

While comparing Tanzanite and Amethyst physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Tanzanite and Amethyst chemical formula.

  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
  • Chemical formula of Amethyst- SiO2

Tanzanite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.65 whereas that of Amethyst is 2.65.