Sinhalite and Rock Crystal Physical Properties

Sinhalite

Rock Crystal

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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

3.46-3.502.65

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

1.7 Mohs Hardness

6-77

2 10

1.8 Chemical Composition

MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Sinhalite and Rock Crystal Chemical Formula

While comparing Sinhalite and Rock Crystal 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 Sinhalite and Rock Crystal chemical formula.

Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

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Sinhalite and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sinhalite and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sinhalite and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Sinhalite is 2.65 whereas that of Rock Crystal is 2.65.