Dravite and Tavorite Physical Properties

Dravite

Tavorite

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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

3.03-3.183.32

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{???} Indistinct

{???} Distinct, {???} Distinct, {???} Distinct

1.7 Mohs Hardness

7-7.5Not Available

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)

LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)

Dravite and Tavorite Chemical Formula

While comparing Dravite and Tavorite 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 Tavorite 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 Tavorite- LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)

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Dravite and Tavorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Tavorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Tavorite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 3.32 whereas that of Tavorite is 3.32.