Topaz and Charoite Physical Properties

Topaz

Charoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.572.54-2.78

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

[001] Perfect

Good in three directions

1.7 Mohs Hardness

85-6

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Topaz and Charoite Chemical Formula

While comparing Topaz and Charoite 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 Charoite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Sagittarius

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Topaz Vs Pietersite

Topaz Vs Quartz Smoky

Topaz and Charoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Charoite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.54-2.78 whereas that of Charoite is 2.54-2.78.