Pezzottaite and Precious Opal Physical Properties

Pezzottaite

Precious Opal

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.141.98-2.25

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

Imperfect; basal

Not Available

1.7 Mohs Hardness

7.5-85-6.5

2 10

1.8 Chemical Composition

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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

Pezzottaite and Precious Opal Chemical Formula

While comparing Pezzottaite 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 Pezzottaite and Precious Opal chemical formula.

Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

Compare Blue Gemstones

Pezzottaite Vs Prase Opal

Pezzottaite Vs Precious Opal

Pezzottaite Vs Pyrophyllite

Pezzottaite and Precious Opal Specific Gravity

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