Alexandrite and Proustite Physical Properties

Alexandrite

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

3.69-3.815.51-5.64

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

1,1 ; 3,2.

Distinct on {10 1 1}

1.7 Mohs Hardness

8.52.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

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

Alexandrite and Proustite Chemical Formula

While comparing Alexandrite 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 Alexandrite and Proustite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Proustite- Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Scorpio

Alexandrite Vs Fluorite

Alexandrite Vs Gahnospinel

Alexandrite Vs Citrine

Alexandrite and Proustite Specific Gravity

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