Chrysocolla and Ettringite Physical Properties

Chrysocolla

Ettringite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.00-2.451.77

1 7.18

1.5 Fracture

Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Not Available

1.6 Cleavage

none

Perfect on {10 1 0}

1.7 Mohs Hardness

2-42-2.5

2 10

1.8 Chemical Composition

Cu₂H₂Si₂O₅(OH)₄

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

Chrysocolla and Ettringite Chemical Formula

While comparing Chrysocolla 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 Chrysocolla and Ettringite chemical formula.

Chemical formula of Chrysocolla- Cu₂H₂Si₂O₅(OH)₄
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Chrysocolla and Ettringite Specific Gravity

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