Jade and Ettringite Physical Properties

Jade

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

2.90-3.381.77

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Not Available

1.6 Cleavage

1 or 2,2 prismatic.

Perfect on {10 1 0}

1.7 Mohs Hardness

6-72-2.5

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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

Jade and Ettringite Chemical Formula

While comparing Jade 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 Jade and Ettringite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Jade and Ettringite Specific Gravity

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