Prehnite and Charoite Physical Properties

Prehnite

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

2.80-2.952.54-2.78

1 7.18

1.5 Fracture

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct on [001]

Good in three directions

1.7 Mohs Hardness

6-6.55-6

2 10

1.8 Chemical Composition

Ca₂Al₂Si₃O₁₂(OH)

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

Prehnite and Charoite Chemical Formula

While comparing Prehnite 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 Prehnite and Charoite chemical formula.

Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)
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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Prehnite and Charoite Specific Gravity

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