Onyx and Rhodolite Physical Properties

Onyx

Rhodolite

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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

2.55-2.703.84

1 7.18

1.5 Fracture

Not Available

Conchoidal

1.6 Cleavage

Indiscernible

none, may show indistinct parting

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

SiO₂

(Mg,Fe)₃Al₂Si₃O₁₂

Onyx and Rhodolite Chemical Formula

While comparing Onyx and Rhodolite 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 Rhodolite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Onyx and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.84 whereas that of Rhodolite is 3.84.