Precious Opal and Scapolite Physical Properties

Precious Opal

Scapolite

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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

1.98-2.252.58-2.74

1 7.18

1.5 Fracture

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

ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery

1.6 Cleavage

Not Available

{100} Distinct, {110} Distinct

1.7 Mohs Hardness

5-6.55.5-6

2 10

1.8 Chemical Composition

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

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Precious Opal and Scapolite Chemical Formula

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

Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Blue Gemstones

Precious Opal Vs Sardonyx

Precious Opal Vs Sard

Precious Opal Vs Sapphire

Precious Opal and Scapolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Precious Opal and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.