Andradite and Charoite Physical Properties

Andradite

Charoite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.102.54-2.78

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

none

Good in three directions

1.7 Mohs Hardness

6.5-75-6

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Andradite and Charoite Chemical Formula

While comparing Andradite 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 Andradite and Charoite chemical formula.

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Andradite and Charoite Specific Gravity

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