Nosean and Ettringite Physical Properties

Nosean

Ettringite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.401.77

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Not Available

1.6 Cleavage

{110} Perfect

Perfect on {10 1 0}

1.7 Mohs Hardness

Not Available2-2.5

2 10

1.8 Chemical Composition

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

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.

Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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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 and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Nosean is 1.77 whereas that of Ettringite is 1.77.