Inderite and Dravite Physical Properties

Inderite

Dravite

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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

1.793.03-3.18

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

{110} Good

{???} Indistinct

1.7 Mohs Hardness

2.57-7.5

2 10

1.8 Chemical Composition

MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Inderite and Dravite Chemical Formula

While comparing Inderite and Dravite 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 Inderite and Dravite chemical formula.

Chemical formula of Inderite- MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Inderite and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Inderite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Inderite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Inderite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.