Adamite and Corundum Physical Properties

Adamite

Corundum

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.483.90-4.05

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Difficult, Fibrous

1.6 Cleavage

{101}, good; {010}, poor

None – parting in 3 directions

1.7 Mohs Hardness

3.59

2 10

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

Al 2O 3Arthur Thomas , Gemstones (2009)

Adamite and Corundum Chemical Formula

While comparing Adamite and Corundum 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 Adamite and Corundum chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

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Adamite and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adamite and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Corundum Optical Properties during the identification of gemstone. Specific gravity of Adamite is 3.90-4.05 whereas that of Corundum is 3.90-4.05.