Chrysocolla and Andalusite Physical Properties

Chrysocolla

Andalusite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.00-2.453.05-3.21

1 7.18

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Fracture

Sub-Conchoidal, Conchoidal

Uneven, Subconchoidal, Splintery

Cleavage

none

Good on {110}, poor on {100}

Mohs Hardness

2-47.5

2 10

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Chemical Composition

Cu₂H₂Si₂O₅(OH)₄

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Chrysocolla and Andalusite Chemical Formula

While comparing Chrysocolla and Andalusite 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 Chrysocolla and Andalusite chemical formula.

Chemical formula of Chrysocolla- Cu₂H₂Si₂O₅(OH)₄
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Chrysocolla Vs Prasiolite

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Chrysocolla and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysocolla and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysocolla and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Chrysocolla is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.