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Creedite
Creedite

Pyrope
Pyrope



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Creedite
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Pyrope

Creedite and Pyrope Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
insoluble in water

Durability

-
-

Specific Gravity

2.703.62-3.87
1 7.18
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Fracture

Uneven, Conchoidal
Conchoidal

Cleavage

Perfect on {100}
None

Mohs Hardness

4.57-7.5
2 10
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Chemical Composition

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Creedite and Pyrope Chemical Formula

While comparing Creedite 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 Creedite and Pyrope chemical formula.

  • Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Creedite and Pyrope Specific Gravity

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