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Pleonaste
Pleonaste

Opal
Opal



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Pleonaste
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Opal

Pleonaste and Opal Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
BrittleWalter Schumann
1.2 Solubility
Not Available
hot salt water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.801.98-2.25
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
1.6 Cleavage
Not Available
None
1.7 Mohs Hardness
85-6.5
Amber
2 10
1.8 Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
SiO2 · nH2O

Pleonaste and Opal Chemical Formula

While comparing Pleonaste and 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 Pleonaste and Opal chemical formula.

  • Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  • Chemical formula of Opal- SiO2 · nH2O

Pleonaste and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pleonaste and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pleonaste and Opal Optical Properties during the identification of gemstone. Specific gravity of Pleonaste is 1.98-2.25 whereas that of Opal is 1.98-2.25.