Rock Crystal and Anorthite Physical Properties

Rock Crystal

Anorthite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.652.77

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Not Available

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

76-6.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Rock Crystal and Anorthite Chemical Formula

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

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

Compare Blue Gemstones

Rock Crystal Vs Scorzalite

Rock Crystal Vs Sardonyx

Rock Crystal Vs Serendibite

Rock Crystal and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rock Crystal and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 2.77 whereas that of Anorthite is 2.77.