Onyx and Wardite Physical Properties

Onyx

Wardite

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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

2.55-2.702.81

1 7.18

1.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Indiscernible

{001} Perfect

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

SiO₂

NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Onyx and Wardite Chemical Formula

While comparing Onyx and Wardite 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 Wardite chemical formula.

Chemical formula of Onyx- SiO₂
Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Onyx and Wardite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Onyx and Wardite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Wardite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 2.81 whereas that of Wardite is 2.81.