Sard and Hollandite Physical Properties

Sard

Hollandite

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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

2.58-2.635.05

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Brittle, Metallic

1.6 Cleavage

Not Available

Distinct / Good, Prismatic

1.7 Mohs Hardness

6.5-74-6

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sard and Hollandite Chemical Formula

While comparing Sard 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 Sard and Hollandite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

Compare Blue Gemstones

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Sard Vs Sodalite

Sard and Hollandite Specific Gravity

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