Steatite and Tanzanite Physical Properties

Steatite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.20-2.803.35

1 7.18

1.5 Fracture

Not Available

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

Not Available6.5-7

2 10

1.8 Chemical Composition

Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)

Ca₂Al₃(SiO₄)₃(OH)

Steatite and Tanzanite Chemical Formula

While comparing Steatite and Tanzanite 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 Steatite and Tanzanite chemical formula.

Chemical formula of Steatite- Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Steatite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Steatite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Steatite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Steatite is 3.35 whereas that of Tanzanite is 3.35.