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Malachite
Malachite

White Opal
White Opal



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Malachite
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White Opal

Malachite and White Opal Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.25-4.101.98-2.50
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.6 Cleavage
Perfect on { 2 01} fair on {010}
Not Available
1.7 Mohs Hardness
3.5-45.5-6.5
Amber
2 10
1.8 Chemical Composition
Cu2CO3(OH)2
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Malachite and White Opal Chemical Formula

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

  • Chemical formula of Malachite- Cu2CO3(OH)2
  • Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Malachite and White Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and White Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and White Opal Optical Properties during the identification of gemstone. Specific gravity of Malachite is 1.98-2.50 whereas that of White Opal is 1.98-2.50.