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Spinel
Spinel

Heliotrope
Heliotrope



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Spinel
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Heliotrope

Spinel and Heliotrope Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
none
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.64-3.662.61
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
1.6 Cleavage
None, but may exhibit slight parting
Not Available
1.7 Mohs Hardness
86.5-7
Amber
2 10
1.8 Chemical Composition
MgAl2O4
Not Available

Spinel and Heliotrope Chemical Formula

While comparing Spinel and Heliotrope 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 Spinel and Heliotrope chemical formula.

  • Chemical formula of Spinel- MgAl2O4
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Spinel and Heliotrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Heliotrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Heliotrope Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.61 whereas that of Heliotrope is 2.61.