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Austinite
Austinite

Forsterite
Forsterite



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Austinite
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Forsterite

Austinite and Forsterite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Easily soluble in cold dilute HCl
-

Durability

-
-

Specific Gravity

4.123.23-3.26
1 7.18
👆🏻

Fracture

Uneven
Conchoidal

Cleavage

Good in two directions parallel to the prism faces {110}
Perfect on {010} imperfect on {100}

Mohs Hardness

4-4.56.5-7
2 10
👆🏻

Chemical Composition

CaZn(AsO4)(OH)
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Austinite and Forsterite Chemical Formula

While comparing Austinite and Forsterite 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 Forsterite chemical formula.

  • Chemical formula of Austinite- CaZn(AsO4)(OH)
  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Austinite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.