Anhydrite and Piemontite Physical Properties

Anhydrite

Piemontite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.98

Not Available

1.5 Fracture

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

Uneven, Splintery

1.6 Cleavage

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

[001] good, [100] distinct

1.7 Mohs Hardness

3.5

6-6.5

1.8 Chemical Composition

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

Not Available

Anhydrite and Piemontite Chemical Formula

While comparing Anhydrite and Piemontite 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 Anhydrite and Piemontite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Anhydrite and Piemontite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is Not Available whereas that of Piemontite is Not Available.