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Steatite
Steatite

Austinite
Austinite



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Steatite
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Austinite

Steatite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

2.20-2.804.12
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

Perfect
Good in two directions parallel to the prism faces {110}

Mohs Hardness

-99994-4.5
2 10
👆🏻

Chemical Composition

Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)
CaZn(AsO4)(OH)

Steatite and Austinite Chemical Formula

While comparing Steatite and Austinite 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 Austinite chemical formula.

  • Chemical formula of Steatite- Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Steatite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Steatite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Steatite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Steatite is 4.12 whereas that of Austinite is 4.12.