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Esperite
Esperite

Austinite
Austinite



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Esperite
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Austinite

Esperite and Austinite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

4.28-4.424.12
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

Distinct on [010] and [100] poor on [101]
Good in two directions parallel to the prism faces {110}

Mohs Hardness

5-5.54-4.5
2 10
👆🏻

Chemical Composition

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
CaZn(AsO4)(OH)

Esperite and Austinite Chemical Formula

While comparing Esperite 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 Esperite and Austinite chemical formula.

  • Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Esperite and Austinite Specific Gravity

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