Chrome Diopside and Alexandrite Physical Properties

Chrome Diopside

Alexandrite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.22-3.40

3.69-3.81

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

1,2 prismatic.

1,1 ; 3,2.

1.7 Mohs Hardness

5-6

8.5

1.8 Chemical Composition

(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)

BeAl ₂ O ₄

Chrome Diopside and Alexandrite Chemical Formula

While comparing Chrome Diopside 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 Chrome Diopside and Alexandrite chemical formula.

Chemical formula of Chrome Diopside- (Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
Chemical formula of Alexandrite- BeAl ₂ O ₄

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Chrome Diopside and Alexandrite Specific Gravity

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