Agate Opal and Anhydrite Physical Properties

Agate Opal

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

1.98-2.502.90-2.98

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

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

5.5-6.53.5

2 10

1.8 Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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

Agate Opal and Anhydrite Chemical Formula

While comparing Agate Opal 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 Agate Opal and Anhydrite chemical formula.

Chemical formula of Agate Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Agate Opal Vs Anorthoclase

Agate Opal Vs Anorthite

Agate Opal Vs Anthophyllite

Agate Opal and Anhydrite Specific Gravity

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