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Girasol
Girasol

Austinite
Austinite



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Girasol
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Austinite

Girasol and Austinite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

1.98-2.504.12
1 7.18
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Fracture

Conchoidal
Uneven

Cleavage

None
Good in two directions parallel to the prism faces {110}

Mohs Hardness

5.5-6.54-4.5
2 10
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Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
CaZn(AsO4)(OH)

Girasol and Austinite Chemical Formula

While comparing Girasol 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 Girasol and Austinite chemical formula.

  • Chemical formula of Girasol- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Girasol and Austinite Specific Gravity

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