Chrysoberyl and Chrome-Chalcedony Physical Properties

Chrysoberyl

Chrome-Chalcedony

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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

3.69-3.81

2.55-2.70

1.5 Fracture

Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic

Not Available

1.6 Cleavage

Distinct on {110}, imperfect on {010}, poor on {001}

Not Available

1.7 Mohs Hardness

8.5

6.5-7

1.8 Chemical Composition

BeAl ₂ O ₄

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Chrysoberyl and Chrome-Chalcedony Chemical Formula

While comparing Chrysoberyl and Chrome-Chalcedony 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 Chrysoberyl and Chrome-Chalcedony chemical formula.

Chemical formula of Chrysoberyl- BeAl ₂ O ₄
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Chrysoberyl and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.