Rhyolite and Anhydrite Physical Properties

Rhyolite

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

Not Available2.90-2.98

1 7.18

1.5 Fracture

Not Available

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

Not Available

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

Rhyolite and Anhydrite Chemical Formula

While comparing Rhyolite 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 Rhyolite and Anhydrite chemical formula.

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

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Rhyolite and Anhydrite Specific Gravity

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