Charoite and Sapphire Physical Properties

Charoite

Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.54-2.783.95-4.03

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Good in three directions

None, but may exhibit parting

1.7 Mohs Hardness

5-69

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Charoite and Sapphire Chemical Formula

While comparing Charoite and Sapphire 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 Charoite and Sapphire chemical formula.

Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sapphire- Al ₂ O ₃

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Charoite and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Charoite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charoite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Charoite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.