Sellaite and Agate Physical Properties

Sellaite

Agate

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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

3.14-3.16

2.60-2.64

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

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

1.6 Cleavage

Perfect on {010} and {110}

Indiscernible

1.7 Mohs Hardness

5-5.5

6.5-7

1.8 Chemical Composition

MgF 2Ulrich Henn and Claudio C.

SiO₂

Sellaite and Agate Chemical Formula

While comparing Sellaite and Agate 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 Sellaite and Agate chemical formula.

Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
Chemical formula of Agate- SiO₂

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Sellaite and Agate Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sellaite and Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite and Agate Optical Properties during the identification of gemstone. Specific gravity of Sellaite is 2.60-2.64 whereas that of Agate is 2.60-2.64.