Nosean and Ettringite Physical Properties

Nosean

Ettringite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.30-2.40

Uneven, Conchoidal

{110} Perfect

-9999

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

Partially soluble in water

1.77

Perfect on {10 1 0}

2-2.5

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Nosean and Ettringite Chemical Formula

While comparing Nosean and Ettringite 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 Ettringite chemical formula.

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Nosean and Ettringite Specific Gravity

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