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Austinite
Austinite

Serandite
Serandite



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Austinite
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Austinite and Serandite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
-

Durability

-
-

Specific Gravity

4.123.52
1 7.18
👆🏻

Fracture

Uneven
-

Cleavage

Good in two directions parallel to the prism faces {110}
{100} Perfect, {001} Perfect

Mohs Hardness

4-4.55-5.5
2 10
👆🏻

Chemical Composition

CaZn(AsO4)(OH)
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael O’Donoghue , Gems, Sixth Edition (2006)

Austinite and Serandite Chemical Formula

While comparing Austinite and Serandite 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 Austinite and Serandite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael O’Donoghue , Gems, Sixth Edition (2006)

Austinite and Serandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Serandite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.52 whereas that of Serandite is 3.52.