Watermelon Tourmaline and Common Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.40
1.98-2.50
Fracture
Uneven, Conchoidal, Uneven, Irregular, Conchoidal, Management Team (2012)
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
Not Available
Not Available
Mohs Hardness
7-7.5
5.5-6.5
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Watermelon Tourmaline and Common Opal Chemical Formula
While comparing Watermelon Tourmaline and Common 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 Watermelon Tourmaline and Common Opal chemical formula.
- Chemical formula of Watermelon Tourmaline- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Watermelon Tourmaline and Common Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Watermelon Tourmaline and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Watermelon Tourmaline and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Watermelon Tourmaline is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.