Friedelite and Proustite Physical Properties

Friedelite

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

3.06-3.195.51-5.64

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

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

1.6 Cleavage

{010} Perfect

Distinct on {10 1 1}

1.7 Mohs Hardness

4-52.5

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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

Friedelite and Proustite Chemical Formula

While comparing Friedelite 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 Friedelite and Proustite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Friedelite and Proustite Specific Gravity

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