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Oligoclase
Oligoclase

Creedite
Creedite



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Oligoclase
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Creedite

Oligoclase and Creedite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.62-2.672.70
Amber
1 7.18
1.5 Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
From the Greek, oligos and kasein, little cleavage.
Perfect on {100}
1.7 Mohs Hardness
6-6.54.5
Amber
2 10
1.8 Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Oligoclase and Creedite Chemical Formula

While comparing Oligoclase and Creedite 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 Oligoclase and Creedite chemical formula.

  • Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Oligoclase and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Creedite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 2.70 whereas that of Creedite is 2.70.