Hollandite and Feldspar Physical Properties

Hollandite

Feldspar

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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

5.052.56-2.75

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

Distinct / Good, Prismatic

two or three

1.7 Mohs Hardness

4-66-6.5

2 10

1.8 Chemical Composition

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

Not Available

Hollandite and Feldspar Chemical Formula

While comparing Hollandite and Feldspar 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 Feldspar chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Hollandite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.