Hollandite and Gahnospinel Physical Properties

Hollandite

Gahnospinel

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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

5.053.65-4.55

1 7.18

1.5 Fracture

Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct / Good, Prismatic

None, but may exhibit slight parting

1.7 Mohs Hardness

4-67.5-8

2 10

1.8 Chemical Composition

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

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Hollandite and Gahnospinel Chemical Formula

While comparing Hollandite and Gahnospinel 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 Gahnospinel chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Hollandite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.