Phenakite and Grossular Physical Properties

Phenakite

Grossular

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.983.55-3.73

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}

none

1.7 Mohs Hardness

7.5-87-7.5

2 10

1.8 Chemical Composition

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Phenakite and Grossular Chemical Formula

While comparing Phenakite and Grossular 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 Phenakite and Grossular chemical formula.

Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Phenakite and Grossular Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Grossular Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Grossular Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 3.55-3.73 whereas that of Grossular is 3.55-3.73.