Nepouite and Ettringite Physical Properties

Nepouite

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

3.18-3.241.77

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

perfect on {001}

Perfect on {10 1 0}

1.7 Mohs Hardness

22-2.5

2 10

1.8 Chemical Composition

Not Available

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

Nepouite and Ettringite Chemical Formula

While comparing Nepouite 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 Nepouite and Ettringite chemical formula.

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

Compare Green Gemstones

Nepouite Vs Riebeckite

Nepouite Vs Rosasite

Nepouite Vs Richterite

Nepouite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepouite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepouite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Nepouite is 1.77 whereas that of Ettringite is 1.77.