Friedelite and Rock Crystal Physical Properties

Friedelite

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

3.06-3.192.65

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

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

1.6 Cleavage

{010} Perfect

Not Available

1.7 Mohs Hardness

4-57

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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

Friedelite and Rock Crystal Chemical Formula

While comparing Friedelite 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 Friedelite and Rock Crystal chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Compare Red Gemstones

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Friedelite Vs Imperial Topaz

Friedelite Vs Hydrogrossular

Friedelite and Rock Crystal Specific Gravity

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