Barite and Proustite Physical Properties

Barite

Proustite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.485.51-5.64

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

{010} Perfect, {210} Perfect, {010} Imperfect

Distinct on {10 1 1}

1.7 Mohs Hardness

3-3.52.5

2 10

1.8 Chemical Composition

BaSO4

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

Barite and Proustite Chemical Formula

While comparing Barite 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 Barite and Proustite chemical formula.

Chemical formula of Barite- BaSO4
Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Barite and Proustite Specific Gravity

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