Hanksite and Ettringite Physical Properties

Hanksite

Ettringite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Readily soluble in water

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.5621.77

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Not Available

1.6 Cleavage

Good on {0001}

Perfect on {10 1 0}

1.7 Mohs Hardness

3-3.52-2.5

2 10

1.8 Chemical Composition

KNa22(SO4)9(CO3)2Cl

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

Hanksite and Ettringite Chemical Formula

While comparing Hanksite 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 Hanksite and Ettringite chemical formula.

Chemical formula of Hanksite- KNa22(SO4)9(CO3)2Cl
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Hanksite and Ettringite Specific Gravity

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