Datolite and Verdite Physical Properties

Datolite

Verdite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.002.80-3.0

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic

Not Available

1.6 Cleavage

None

{110} Good

1.7 Mohs Hardness

5-5.53

2 10

1.8 Chemical Composition

CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

NaFeS2•2(H2O)

Datolite and Verdite Chemical Formula

While comparing Datolite and Verdite 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 Datolite and Verdite chemical formula.

Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Verdite- NaFeS2•2(H2O)

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Datolite and Verdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Datolite and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Datolite and Verdite Optical Properties during the identification of gemstone. Specific gravity of Datolite is 2.80-3.0 whereas that of Verdite is 2.80-3.0.