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Hollandite
Hollandite

Aragonite
Aragonite



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Hollandite
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Aragonite

Hollandite and Aragonite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
5.05
-
Distinct / Good, Prismatic
4-6
Ba(Mn++++,Mn++)8O16
 
Brittle
Dilute acid
-
2.93-2.96
Subconchoidal, Conchoidal
Distinct on {010}, imperfect {110} and {011}
3.5-4
CaCO 3Michael O’Donoghue , 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.

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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 Vs Aragonite during the identification of gemstone. Specific gravity of Hollandite is whereas that of Aragonite is .