Pargasite and Agate Opal Physical Properties

Pargasite

Agate 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

3.04-3.261.98-2.50

1 7.18

1.7 Fracture

Splintery, Brittle, Uneven

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.8 Cleavage

{110} perfect

Not Available

1.9 Mohs Hardness

5-65.5-6.5

2 10

1.13 Chemical Composition

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Pargasite and Agate Opal Chemical Formula

While comparing Pargasite and Agate 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 Pargasite and Agate Opal chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Agate Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Pargasite and Agate Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Agate Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Agate Opal Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 1.98-2.50 whereas that of Agate Opal is 1.98-2.50.