Prase and Anhydrite Physical Properties

Prase

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

2.64-2.692.90-2.98

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

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

73.5

2 10

1.8 Chemical Composition

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Prase and Anhydrite Chemical Formula

While comparing Prase 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 Prase and Anhydrite chemical formula.

Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Blue Gemstones

Prase Vs Sapphire

Prase Vs Sanidine

Prase Vs Rubellite

Prase and Anhydrite Specific Gravity

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