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Thaumasite
Thaumasite

Austinite
Austinite



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Thaumasite
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Austinite

Thaumasite and Austinite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

1.914.12
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Uneven

Cleavage

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

Mohs Hardness

3.54-4.5
2 10
👆🏻

Chemical Composition

Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.
CaZn(AsO4)(OH)

Thaumasite and Austinite Chemical Formula

While comparing Thaumasite 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 Thaumasite and Austinite chemical formula.

  • Chemical formula of Thaumasite- Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Thaumasite and Austinite Specific Gravity

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