Sulfur and Ettringite Physical Properties

Sulfur

Ettringite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available1.77

1 7.18

1.5 Fracture

(e.g. graphite).

Not Available

1.6 Cleavage

{???} Imperfect, {???} Imperfect

Perfect on {10 1 0}

1.7 Mohs Hardness

Not Available2-2.5

2 10

1.8 Chemical Composition

Not Available

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

Sulfur and Ettringite Chemical Formula

While comparing Sulfur 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 Sulfur and Ettringite chemical formula.

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

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Sulfur and Ettringite Specific Gravity

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