Pearl and Hibschite Physical Properties

Pearl

Hibschite

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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

2.60-2.85

3.05-3.08

1.5 Fracture

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

Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle

1.6 Cleavage

none

None

1.7 Mohs Hardness

2.5-4.5

6.5

1.8 Chemical Composition

Not Available

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Pearl and Hibschite Chemical Formula

While comparing Pearl and Hibschite 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 Pearl and Hibschite chemical formula.

Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

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Pearl and Hibschite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pearl and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Pearl is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.

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