Precious Opal and Bertrandite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
2.59-2.60
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Brittle, Metallic, Brittle, Metallic
Cleavage
Not Available
{001} Perfect, {110} Distinct, {101} Distinct
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Precious Opal and Bertrandite Chemical Formula
While comparing Precious Opal and Bertrandite 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 Precious Opal and Bertrandite chemical formula.
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
- Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Precious Opal and Bertrandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Precious Opal and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.