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Pyrope Almandine
Pyrope Almandine

Alexandrite
Alexandrite



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Pyrope Almandine
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Alexandrite

Pyrope Almandine and Alexandrite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.62-4.203.69-3.81
Amber
1 7.18
1.5 Fracture
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)
Not Available
1.6 Cleavage
Not Available
1,1 ; 3,2.
1.7 Mohs Hardness
7-7.58.5
Amber
2 10
1.8 Chemical Composition
(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
BeAl 2 O 4

Pyrope Almandine and Alexandrite Chemical Formula

While comparing Pyrope Almandine and Alexandrite 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 Almandine and Alexandrite chemical formula.

  • Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
  • Chemical formula of Alexandrite- BeAl 2 O 4

Pyrope Almandine and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope Almandine and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope Almandine and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Pyrope Almandine is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.