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Alexandrite
Alexandrite

Pyromorphite
Pyromorphite



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Alexandrite
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Pyromorphite

Alexandrite and Pyromorphite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.69-3.81
-
1,1 ; 3,2.
8.5
BeAl 2 O 4
 
Brittle
-
-
6.5-7.1
Uneven, Conchoidal
Imperfect- [10 1 1]
3.5-4
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Alexandrite and Pyromorphite Chemical Formula

While comparing Alexandrite and Pyromorphite 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 Alexandrite and Pyromorphite chemical formula.

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Alexandrite and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite Vs Pyromorphite during the identification of gemstone. Specific gravity of Alexandrite is whereas that of Pyromorphite is .