Rock Crystal and Charlesite Physical Properties

Rock Crystal

Charlesite

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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

2.651.79

1 7.18

1.5 Fracture

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

Irregular/uneven, Brittle, Metallic

1.6 Cleavage

Not Available

Perfect on {10bar10}

1.7 Mohs Hardness

72.5

2 10

1.8 Chemical Composition

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

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Rock Crystal and Charlesite Chemical Formula

While comparing Rock Crystal and Charlesite 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 Charlesite chemical formula.

Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Compare Blue Gemstones

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Rock Crystal Vs Scorzalite

Rock Crystal and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rock Crystal and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 1.79 whereas that of Charlesite is 1.79.