Prasiolite and Ettringite Physical Properties

Prasiolite

Ettringite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.651.77

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Not Available

1.6 Cleavage

3,1

Perfect on {10 1 0}

1.7 Mohs Hardness

72-2.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Prasiolite and Ettringite Chemical Formula

While comparing Prasiolite 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 Prasiolite and Ettringite chemical formula.

Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Prasiolite and Ettringite Specific Gravity

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