Chalcedony and Hollandite Physical Properties

Chalcedony

Hollandite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.705.05

1 7.18

1.5 Fracture

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

Brittle, Metallic

1.6 Cleavage

Absent

Distinct / Good, Prismatic

1.7 Mohs Hardness

6.5-74-6

2 10

1.8 Chemical Composition

SiO₂

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

Chalcedony and Hollandite Chemical Formula

While comparing Chalcedony 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 Chalcedony and Hollandite chemical formula.

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

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Chalcedony and Hollandite Specific Gravity

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