Dravite and Serpentine Physical Properties

Dravite

Serpentine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.03-3.182.44-2.62

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gemstones of the world (2001) More from other references

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

7-7.52.5-5.5

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)

H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references

Dravite and Serpentine Chemical Formula

While comparing Dravite and Serpentine 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 Serpentine 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 Serpentine- H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references

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Dravite and Serpentine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Serpentine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Serpentine Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.44-2.62 whereas that of Serpentine is 2.44-2.62.