Austinite and Kornerupine Physical Properties

Austinite

Kornerupine

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Easily soluble in cold dilute HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.123.25-3.45

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

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

Good on {110}

1.7 Mohs Hardness

4-4.56.5

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Austinite and Kornerupine Chemical Formula

While comparing Austinite and Kornerupine 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 Austinite and Kornerupine chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Green Gemstones

Austinite Vs Apophyllite KF

Austinite Vs Cordierite

Austinite Vs Clintonite

Austinite and Kornerupine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.