Onyx and Euclase Physical Properties

Onyx

Euclase

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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

2.55-2.703.08-3.12

1 7.18

1.5 Fracture

Not Available

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic

1.6 Cleavage

Indiscernible

{010} Perfect

1.7 Mohs Hardness

6.5-77.5

2 10

1.8 Chemical Composition

SiO₂

BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Onyx and Euclase Chemical Formula

While comparing Onyx and Euclase 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 Onyx and Euclase chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Euclase- BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Onyx and Euclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Euclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Euclase Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.08-3.12 whereas that of Euclase is 3.08-3.12.