Common Opal and Moonstone Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.50
2.56-2.60
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Not Available
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
5.5-6.5
6-6.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Common Opal and Moonstone Chemical Formula
While comparing Common Opal and Moonstone 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 Common Opal and Moonstone chemical formula.
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Common Opal and Moonstone Specific Gravity
Another important criteria for qualitative analysis of gemstones is Common Opal and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.