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Jacobsite
Jacobsite

Austinite
Austinite



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Jacobsite
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Austinite

Jacobsite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

4.76-5.034.12
1 7.18
👆🏻

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

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
CaZn(AsO4)(OH)

Jacobsite and Austinite Chemical Formula

While comparing Jacobsite 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 Jacobsite and Austinite chemical formula.

  • Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Jacobsite and Austinite Specific Gravity

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