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Friedelite
Friedelite

Austinite
Austinite



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Friedelite
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Austinite

Friedelite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

3.06-3.194.12
1 7.18
👆🏻

Fracture

Uneven
Uneven

Cleavage

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

Mohs Hardness

4-54-4.5
2 10
👆🏻

Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
CaZn(AsO4)(OH)

Friedelite and Austinite Chemical Formula

While comparing Friedelite 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 Friedelite and Austinite chemical formula.

  • Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Friedelite and Austinite Specific Gravity

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