Azurmalachite and Ettringite Physical Properties

Azurmalachite

Ettringite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-3.95

1.77

1.5 Fracture

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

Not Available

1.6 Cleavage

1,1 basal.

Perfect on {10 1 0}

1.7 Mohs Hardness

3.5-4

2-2.5

1.8 Chemical Composition

(Cu) 3(OH) 2(CO 3) 2 + Cu 2(CO 3)(OH) 2Gemdat.org , Management Team (2012)

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

Azurmalachite and Ettringite Chemical Formula

While comparing Azurmalachite 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 Azurmalachite and Ettringite chemical formula.

Chemical formula of Azurmalachite- (Cu) 3(OH) 2(CO 3) 2 + Cu 2(CO 3)(OH) 2Gemdat.org , Management Team (2012)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Azurmalachite and Ettringite Specific Gravity

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