Charoite and Diaspore Physical Properties

Charoite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.54-2.783.30-3.40

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Good in three directions

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

5-66.5-7

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

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Charoite and Diaspore Chemical Formula

While comparing Charoite and Diaspore 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 Diaspore 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 Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Charoite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Charoite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charoite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Charoite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.