Rock Crystal and Powellite Physical Properties

Rock Crystal

Powellite

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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

2.654.23

1 7.18

1.5 Fracture

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

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Not Available

{111} Distinct

1.7 Mohs Hardness

73.5-4

2 10

1.8 Chemical Composition

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

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Rock Crystal and Powellite Chemical Formula

While comparing Rock Crystal and Powellite 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 Powellite chemical formula.

Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Rock Crystal Vs Serendibite

Rock Crystal Vs Scorzalite

Rock Crystal Vs Sardonyx

Rock Crystal and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rock Crystal and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Powellite Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 4.23 whereas that of Powellite is 4.23.