Hollandite and Aragonite Physical Properties

Hollandite

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

5.052.93-2.96

1 7.18

1.5 Fracture

Brittle, Metallic

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Distinct / Good, Prismatic

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

4-63.5-4

2 10

1.8 Chemical Composition

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Hollandite and Aragonite Chemical Formula

While comparing Hollandite and Aragonite 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 Hollandite and Aragonite chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hollandite Vs Falcons Eye

Hollandite Vs Larvikite

Hollandite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.