Brazilianite and Nosean Physical Properties

Brazilianite and Nosean Chemical Formula

While comparing Brazilianite 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 Brazilianite and Nosean chemical formula.

• Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

Brazilianite and Nosean Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brazilianite and Nosean Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite and Nosean Optical Properties during the identification of gemstone. Specific gravity of Brazilianite is 2.30-2.40 whereas that of Nosean is 2.30-2.40.