Hollandite and Creedite Physical Properties

Hollandite

Creedite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.052.70

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Distinct / Good, Prismatic

Perfect on {100}

1.7 Mohs Hardness

4-64.5

2 10

1.8 Chemical Composition

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

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Hollandite and Creedite Chemical Formula

While comparing Hollandite and Creedite 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 Creedite chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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Hollandite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hollandite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 2.70 whereas that of Creedite is 2.70.