Dravite and Chrysotile Physical Properties

Dravite

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

3.03-3.182.51-2.63

1 7.18

1.5 Fracture

Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Fibrous

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

7-7.52.5-4.5

2 10

1.8 Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Dravite and Chrysotile Chemical Formula

While comparing Dravite 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 Dravite and Chrysotile chemical formula.

Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Chrysotile- Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)

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Dravite and Chrysotile Specific Gravity

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