Rhodolite and Precious Opal Physical Properties

Rhodolite

Precious Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.3 Solubility

Not Available

1.5 Durability

Not Available

1.6 Specific Gravity

3.841.98-2.25

1 7.18

1.7 Fracture

Conchoidal

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

1.8 Cleavage

none, may show indistinct parting

Not Available

1.9 Mohs Hardness

7-7.55-6.5

2 10

1.10 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

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

Rhodolite and Precious Opal Chemical Formula

While comparing Rhodolite 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 Rhodolite and Precious Opal chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Rhodolite and Precious Opal Specific Gravity

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