Wood Opal and Almandine Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.50
3.95-4.30
Fracture
Not Available
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Not Available
none
Mohs Hardness
5.5-6.5
7-7.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Wood Opal and Almandine Chemical Formula
While comparing Wood Opal and Almandine 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 Wood Opal and Almandine chemical formula.
- Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Wood Opal and Almandine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Wood Opal and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wood Opal and Almandine Optical Properties during the identification of gemstone. Specific gravity of Wood Opal is 3.95-4.30 whereas that of Almandine is 3.95-4.30.