Dravite and Falcons Eye Physical Properties

Dravite

Falcons Eye

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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

3.03-3.182.58-2.64

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

7-7.57

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)

SiO 2Walter Schumann , Gemstones of the world (2001)

Dravite and Falcons Eye Chemical Formula

While comparing Dravite and Falcons Eye 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 Falcons Eye 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 Falcons Eye- SiO 2Walter Schumann , Gemstones of the world (2001)

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Dravite and Falcons Eye Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Falcons Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Falcons Eye Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.58-2.64 whereas that of Falcons Eye is 2.58-2.64.