Spinel and Orthoclase Physical Properties

Spinel

Orthoclase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.662.54-2.61

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Gems, Uneven

1.6 Cleavage

None, but may exhibit slight parting

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

MgAl₂O₄

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Spinel and Orthoclase Chemical Formula

While comparing Spinel and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Scorpio

Spinel Vs Charoite

Spinel Vs Azurmalachite

Spinel Vs Ametrine

Spinel and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.