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Stichtite
Stichtite

Austinite
Austinite



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Stichtite
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Austinite

Stichtite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

2.11-2.204.12
1 7.18
👆🏻

Fracture

Uneven
Uneven

Cleavage

Perfect on {0001}
Good in two directions parallel to the prism faces {110}

Mohs Hardness

-99994-4.5
2 10
👆🏻

Chemical Composition

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)

Stichtite and Austinite Chemical Formula

While comparing Stichtite 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 Stichtite and Austinite chemical formula.

  • Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Stichtite and Austinite Specific Gravity

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