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Pearl
Pearl

Spinel
Spinel



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Pearl
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Spinel

Pearl and Spinel Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
none
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.60-2.853.64-3.66
Amber
1 7.18
1.5 Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
none
None, but may exhibit slight parting
1.7 Mohs Hardness
2.5-4.58
Amber
2 10
1.8 Chemical Composition
Not Available
MgAl2O4

Pearl and Spinel Chemical Formula

While comparing Pearl and Spinel 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 Pearl and Spinel chemical formula.

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  • Chemical formula of Spinel- MgAl2O4

Pearl and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pearl and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Spinel Optical Properties during the identification of gemstone. Specific gravity of Pearl is 3.64-3.66 whereas that of Spinel is 3.64-3.66.