Omphacite and Hollandite Physical Properties

Omphacite

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

3.16-3.435.05

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Brittle, Metallic

1.6 Cleavage

{110} Good, {110} Good

Distinct / Good, Prismatic

1.7 Mohs Hardness

5-64-6

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)

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

Omphacite and Hollandite Chemical Formula

While comparing Omphacite 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 Omphacite and Hollandite chemical formula.

Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Omphacite and Hollandite Specific Gravity

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