White Opal and Cuprite Physical Properties

White Opal

Cuprite

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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

1.98-2.505.85-6.15

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

Fair in four directions forming octahedrons

1.7 Mohs Hardness

5.5-6.53.5-4

2 10

1.8 Chemical Composition

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

Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

White Opal and Cuprite Chemical Formula

While comparing White Opal and Cuprite 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 White Opal and Cuprite chemical formula.

Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

White Opal Vs Kyanite

White Opal Vs Iolite

White Opal Vs Idocrase

White Opal and Cuprite Specific Gravity

Another important criteria for qualitative analysis of gemstones is White Opal and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Cuprite Optical Properties during the identification of gemstone. Specific gravity of White Opal is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.