Onyx and Antigorite Physical Properties

Onyx

Antigorite

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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

2.55-2.702.58-2.80

1 7.18

1.5 Fracture

Not Available

Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

Indiscernible

{001} Good

1.7 Mohs Hardness

6.5-75-5.5

2 10

1.8 Chemical Composition

SiO₂

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Onyx and Antigorite Chemical Formula

While comparing Onyx and Antigorite 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 Antigorite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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Onyx and Antigorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.