Adamite and Proustite Physical Properties

Adamite

Proustite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.48

5.51-5.64

1.5 Fracture

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

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

1.6 Cleavage

{101}, good; {010}, poor

Distinct on {10 1 1}

1.7 Mohs Hardness

3.5

2.5

1.8 Chemical Composition

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

Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Adamite and Proustite Chemical Formula

While comparing Adamite and Proustite 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 Proustite chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Adamite and Proustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adamite and Proustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Proustite Optical Properties during the identification of gemstone. Specific gravity of Adamite is 5.51-5.64 whereas that of Proustite is 5.51-5.64.