Verdite and Ettringite Physical Properties

Verdite

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

2.80-3.01.77

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

{110} Good

Perfect on {10 1 0}

1.7 Mohs Hardness

32-2.5

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

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

Verdite and Ettringite Chemical Formula

While comparing Verdite 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 Verdite and Ettringite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Verdite Vs Yttrium Aluminium Garnet

Verdite Vs Zircon

Verdite Vs White Opal

Verdite and Ettringite Specific Gravity

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