Sulphur and Ettringite Physical Properties

Sulphur

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

2.05-2.081.77

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

Not Available

Perfect on {10 1 0}

1.7 Mohs Hardness

Not Available2-2.5

2 10

1.8 Chemical Composition

SWalter Schumann , Gemstones of the world (2001)

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

Sulphur and Ettringite Chemical Formula

While comparing Sulphur 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 Sulphur and Ettringite chemical formula.

Chemical formula of Sulphur- SWalter Schumann , Gemstones of the world (2001)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Sulphur and Ettringite Specific Gravity

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