Topaz and Chrysocolla Physical Properties

Topaz

Chrysocolla

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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

3.49-3.57

2.00-2.45

1.5 Fracture

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

Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

[001] Perfect

none

1.7 Mohs Hardness

2-4

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Cu₂H₂Si₂O₅(OH)₄

Topaz and Chrysocolla Chemical Formula

While comparing Topaz and Chrysocolla 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 Topaz and Chrysocolla chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Chrysocolla- Cu₂H₂Si₂O₅(OH)₄

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Topaz and Chrysocolla Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Chrysocolla Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Chrysocolla Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.00-2.45 whereas that of Chrysocolla is 2.00-2.45.