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Moldavite
Moldavite

Oligoclase
Oligoclase



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Moldavite
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Moldavite and Oligoclase Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.32-2.38
2.62-2.67
1.5 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
1.6 Cleavage
Not Available
From the Greek, oligos and kasein, little cleavage.
1.7 Mohs Hardness
5.5
6-6.5
1.8 Chemical Composition
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Moldavite and Oligoclase Chemical Formula

While comparing Moldavite and Oligoclase 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 Moldavite and Oligoclase chemical formula.

  • Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
  • Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Moldavite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moldavite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moldavite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Moldavite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.