Charoite and Hollandite Physical Properties

Charoite

Hollandite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.54-2.785.05

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Brittle, Metallic

1.6 Cleavage

Good in three directions

Distinct / Good, Prismatic

1.7 Mohs Hardness

5-64-6

2 10

1.8 Chemical Composition

K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Charoite and Hollandite Chemical Formula

While comparing Charoite 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 Charoite and Hollandite chemical formula.

Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Charoite and Hollandite Specific Gravity

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