Hardystonite and Precious Opal Physical Properties

Hardystonite

Precious Opal

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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

3.396-3.4431.98-2.25

1 7.18

1.5 Fracture

Brittle, Metallic

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references

1.6 Cleavage

[001] good, [100] and [110] fair

Not Available

1.7 Mohs Hardness

3-45-6.5

2 10

1.8 Chemical Composition

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

SiO 2 · nH 2OGemdat.org , Management Team (2012)

Hardystonite and Precious Opal Chemical Formula

While comparing Hardystonite and Precious Opal 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 Hardystonite and Precious Opal chemical formula.

Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

Compare White Gemstones

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Hardystonite and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hardystonite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hardystonite and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Hardystonite is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.