Datolite and Hollandite Physical Properties

Datolite

Hollandite

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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

2.90-3.005.05

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

None

Distinct / Good, Prismatic

1.7 Mohs Hardness

5-5.54-6

2 10

1.8 Chemical Composition

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

Ba(Mn++++,Mn++)8O16

Datolite and Hollandite Chemical Formula

While comparing Datolite and Hollandite 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 Hollandite chemical formula.

Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Datolite and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Datolite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Datolite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Datolite is 5.05 whereas that of Hollandite is 5.05.