Pyrope and Rock Crystal Physical Properties

Pyrope

Rock Crystal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-3.872.65

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

7-7.57

2 10

1.8 Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Pyrope and Rock Crystal Chemical Formula

While comparing Pyrope 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 Pyrope and Rock Crystal chemical formula.

Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Compare Red Gemstones

Pyrope Vs Rhodolite

Pyrope Vs Rock Crystal

Pyrope Vs Rubellite

Pyrope and Rock Crystal Specific Gravity

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