Quartz and Hollandite Physical Properties

Quartz

Hollandite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.655.05

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle, Gems

Brittle, Metallic

1.6 Cleavage

{0110} Indistinct

Distinct / Good, Prismatic

1.7 Mohs Hardness

74-6

2 10

1.8 Chemical Composition

SiO₂

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

Quartz and Hollandite Chemical Formula

While comparing Quartz 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 Quartz and Hollandite chemical formula.

Chemical formula of Quartz- SiO₂
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Quartz and Hollandite Specific Gravity

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