Dravite and Ekanite Physical Properties

Dravite

Ekanite

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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

3.03-3.183.28-3.32

1 7.18

1.5 Fracture

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

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

{???} Indistinct

{101} Distinct

1.7 Mohs Hardness

7-7.56-6.5

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)

ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

Dravite and Ekanite Chemical Formula

While comparing Dravite and Ekanite 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 Ekanite 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 Ekanite- ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references

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Dravite and Ekanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Ekanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Ekanite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 3.28-3.32 whereas that of Ekanite is 3.28-3.32.