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Sanidine
Sanidine

Pyrope
Pyrope



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Sanidine
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Pyrope

Sanidine and Pyrope Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
insoluble in water

Durability

-
-

Specific Gravity

2.54-2.613.62-3.87
1 7.18
👆🏻

Fracture

Uneven
Conchoidal

Cleavage

{001} Perfect, {010} Good
None

Mohs Hardness

67-7.5
2 10
👆🏻

Chemical Composition

KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Sanidine and Pyrope Chemical Formula

While comparing Sanidine and Pyrope 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 Sanidine and Pyrope chemical formula.

  • Chemical formula of Sanidine- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Sanidine and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sanidine and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sanidine and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Sanidine is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.