Amethyst and Hollandite Physical Properties

Amethyst

Hollandite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.655.05

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Brittle, Metallic

1.6 Cleavage

Indiscernible

Distinct / Good, Prismatic

1.7 Mohs Hardness

74-6

2 10

1.8 Chemical Composition

SiO₂

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

Amethyst and Hollandite Chemical Formula

While comparing Amethyst 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 Amethyst and Hollandite chemical formula.

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

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Amethyst and Hollandite Specific Gravity

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