Ettringite and Andean Opal Physical Properties

Ettringite

Andean Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Partially soluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.77Not Available

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

Perfect on {10 1 0}

Not Available

1.7 Mohs Hardness

2-2.5Not Available

2 10

1.8 Chemical Composition

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

Not Available

Ettringite and Andean Opal Chemical Formula

While comparing Ettringite and Andean Opal 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 Andean Opal 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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Ettringite and Andean Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Andean Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Andean Opal Optical Properties during the identification of gemstone. Specific gravity of Ettringite is Not Available whereas that of Andean Opal is Not Available.