Dravite and Super Seven Crystals Physical Properties

Dravite

Super Seven Crystals

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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

3.03-3.182.9

1 7.18

1.5 Fracture

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

Fibrous

1.6 Cleavage

{???} Indistinct

[010] Perfect, [100] Distinct, [011] Distinct

1.7 Mohs Hardness

7-7.52

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)

Not Available

Dravite and Super Seven Crystals Chemical Formula

While comparing Dravite and Super Seven Crystals 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 Super Seven Crystals 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)

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Dravite and Super Seven Crystals Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Super Seven Crystals Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Super Seven Crystals Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.9 whereas that of Super Seven Crystals is 2.9.