Albite and Rock Crystal Physical Properties

Albite

Rock Crystal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.652.65

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

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

1.6 Cleavage

Perfect on {001}, very good on {010}, imperfect on {110}

Not Available

1.7 Mohs Hardness

6-6.57

2 10

1.8 Chemical Composition

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Albite and Rock Crystal Chemical Formula

While comparing Albite 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 Albite and Rock Crystal chemical formula.

Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

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Albite and Rock Crystal Specific Gravity

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