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