Achroite and Nosean Physical Properties

Achroite

Nosean

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

Uneven, ConchoidalWalter Schumann

Indiscernible

7-7.5

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.

2.30-2.40

Uneven, Conchoidal

{110} Perfect

-9999

Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

Achroite and Nosean Chemical Formula

While comparing Achroite 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 Achroite and Nosean chemical formula.

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Achroite and Nosean Specific Gravity

Another important criteria for qualitative analysis of gemstones is Achroite and Nosean Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite Vs Nosean during the identification of gemstone. Specific gravity of Achroite is whereas that of Nosean is .