Painite and Anhydrite Physical Properties

Painite

Anhydrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.00-4.032.90-2.98

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Not Available

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

1.7 Mohs Hardness

7.5-83.5

2 10

1.8 Chemical Composition

CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Painite and Anhydrite Chemical Formula

While comparing Painite and Anhydrite 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 Painite and Anhydrite chemical formula.

Chemical formula of Painite- CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Painite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Painite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Painite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Painite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.