×

Gypsum
Gypsum

Austinite
Austinite



ADD
Compare
X
Gypsum
X
Austinite

Gypsum and Austinite Physical Properties

Add ⊕

Physical Properties

Tenacity

Flexible
Brittle

Solubility

Soluble
Easily soluble in cold dilute HCl

Durability

-
-

Specific Gravity

2.20-2.404.12
1 7.18
👆🏻

Fracture

Conchoidal, Splintery, Fibrous
Uneven

Cleavage

Perfect on {010}, distinct on {100}
Good in two directions parallel to the prism faces {110}

Mohs Hardness

24-4.5
2 10
👆🏻

Chemical Composition

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
CaZn(AsO4)(OH)

Gypsum and Austinite Chemical Formula

While comparing Gypsum 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 Gypsum and Austinite chemical formula.

  • Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Austinite- CaZn(AsO4)(OH)

Gypsum and Austinite Specific Gravity

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