Pyrope Almandine and Precious Opal Physical Properties

Pyrope Almandine

Precious Opal

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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

3.62-4.201.98-2.25

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.55-6.5

2 10

1.8 Chemical Composition

(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

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

Pyrope Almandine and Precious Opal Chemical Formula

While comparing Pyrope Almandine 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 Pyrope Almandine and Precious Opal chemical formula.

Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Pyrope Almandine and Precious Opal Specific Gravity

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