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Quartz
Quartz

Pyrope
Pyrope



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Quartz
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Pyrope

Quartz and Pyrope Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
insoluble in water

Durability

-
-

Specific Gravity

2.653.62-3.87
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

{0110} Indistinct
None

Mohs Hardness

77-7.5
2 10
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Chemical Composition

SiO2
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Quartz and Pyrope Chemical Formula

While comparing Quartz 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 Quartz and Pyrope chemical formula.

  • Chemical formula of Quartz- SiO2
  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Quartz and Pyrope Specific Gravity

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