Datolite and Corundum Physical Properties

Datolite

Corundum

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.003.90-4.05

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Difficult, Fibrous

1.6 Cleavage

None

None – parting in 3 directions

1.7 Mohs Hardness

5-5.59

2 10

1.8 Chemical Composition

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

Al 2O 3Arthur Thomas , Gemstones (2009)

Datolite and Corundum Chemical Formula

While comparing Datolite and Corundum 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 Corundum chemical formula.

Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Compare Green Gemstones

Datolite Vs Emerald

Datolite Vs Elaeolite

Datolite Vs Euclase

Datolite and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Datolite and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Datolite and Corundum Optical Properties during the identification of gemstone. Specific gravity of Datolite is 3.90-4.05 whereas that of Corundum is 3.90-4.05.