Opal Ethiopia and Spinel Physical Properties

Opal Ethiopia

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.64-3.66

1 7.18

1.5 Fracture

Not Available

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

None, but may exhibit slight parting

1.7 Mohs Hardness

5.5-6.58

2 10

1.8 Chemical Composition

Not Available

MgAl₂O₄

Opal Ethiopia and Spinel Chemical Formula

While comparing Opal Ethiopia 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 Opal Ethiopia and Spinel chemical formula.

Chemical formula of Spinel- MgAl₂O₄

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Opal Ethiopia and Spinel Specific Gravity

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