Nosean and Harlequin Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.40
1.98-2.50
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
{110} Perfect
Not Available
Mohs Hardness
Not Available
5.5-6.5
Chemical Composition
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Nosean and Harlequin Opal Chemical Formula
While comparing Nosean and Harlequin 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 Nosean and Harlequin Opal chemical formula.
- Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Harlequin Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Nosean and Harlequin Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nosean and Harlequin Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nosean and Harlequin Opal Optical Properties during the identification of gemstone. Specific gravity of Nosean is 1.98-2.50 whereas that of Harlequin Opal is 1.98-2.50.