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Pyrope
Pyrope

Labradorite
Labradorite



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Pyrope and Labradorite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
insoluble in water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.62-3.87
2.69-2.72
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Conchoidal, Gems, Sixth Edition (2006)
1.6 Cleavage
None
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
1.7 Mohs Hardness
7-7.5
6-6.5
1.8 Chemical Composition
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
(Na,Ca)1-2Si3-2O8

Pyrope and Labradorite Chemical Formula

While comparing Pyrope and Labradorite 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 Pyrope and Labradorite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8

Pyrope and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.