Elbaite and Austinite Physical Properties

Elbaite

Austinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.104.12

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

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

1.7 Mohs Hardness

74-4.5

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

CaZn(AsO4)(OH)

Elbaite and Austinite Chemical Formula

While comparing Elbaite 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 Elbaite and Austinite chemical formula.

Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Chemical formula of Austinite- CaZn(AsO4)(OH)

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Elbaite and Austinite Specific Gravity

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