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Blue spinel
Blue spinel

Andalusite
Andalusite



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Blue spinel
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Andalusite

Blue spinel and Andalusite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
-9999
MgAl2O4
 
-
-
-
3.05-3.21
Uneven, Subconchoidal, Splintery
Good on {110}, poor on {100}
7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Blue spinel and Andalusite Chemical Formula

While comparing Blue spinel and Andalusite 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 Blue spinel and Andalusite chemical formula.

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Blue spinel and Andalusite Specific Gravity

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