Ettringite and Cassiterite Physical Properties

Ettringite

Cassiterite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Partially soluble in water

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

1.776.86-7.03

1 7.18

1.5 Fracture

Not Available

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

1.6 Cleavage

Perfect on {10 1 0}

{100} imperfect, {110} indistinct; partings on {111} or {011}

1.7 Mohs Hardness

2-2.56-7

2 10

1.8 Chemical Composition

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

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ettringite and Cassiterite Chemical Formula

While comparing Ettringite and Cassiterite 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 Ettringite and Cassiterite chemical formula.

Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Ettringite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.