Achroite and Chrysotile Physical Properties

Achroite

Chrysotile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.402.51-2.63

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

Fibrous

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.52.5-4.5

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)

Achroite and Chrysotile Chemical Formula

While comparing Achroite and Chrysotile 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 Achroite and Chrysotile chemical formula.

Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chemical formula of Chrysotile- Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)

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Achroite and Chrysotile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Achroite and Chrysotile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Chrysotile Optical Properties during the identification of gemstone. Specific gravity of Achroite is 2.51-2.63 whereas that of Chrysotile is 2.51-2.63.