Villiaumite and Datolite Physical Properties

Villiaumite

Datolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.792.90-3.00

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

{100} Perfect, {010} Perfect, {001} Perfect

None

1.7 Mohs Hardness

25-5.5

2 10

1.8 Chemical Composition

NaFUlrich Henn and Claudio C.

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

Villiaumite and Datolite Chemical Formula

While comparing Villiaumite and Datolite 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 Villiaumite and Datolite chemical formula.

Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.
Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems Found in America

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Villiaumite and Datolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Villiaumite and Datolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Villiaumite and Datolite Optical Properties during the identification of gemstone. Specific gravity of Villiaumite is 2.90-3.00 whereas that of Datolite is 2.90-3.00.