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Pyrope
Pyrope

Zoisite
Zoisite



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Pyrope
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Zoisite

Pyrope and Zoisite Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

insoluble in water
-

Durability

-
-

Specific Gravity

3.62-3.873.20-3.50
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal, Even

Cleavage

None
Perfect {010} imperfect {100}

Mohs Hardness

7-7.56-7
2 10
👆🏻

Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ca2Al3(SiO4)3(OH)

Pyrope and Zoisite Chemical Formula

While comparing Pyrope and Zoisite 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 Zoisite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Zoisite- Ca2Al3(SiO4)3(OH)

Pyrope and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.