Spinel and Sapphirine Physical Properties

Spinel

Sapphirine

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.663.40-3.58

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

None, but may exhibit slight parting

{010} Perfect

1.7 Mohs Hardness

87.5

2 10

1.8 Chemical Composition

MgAl₂O₄

(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Spinel and Sapphirine Chemical Formula

While comparing Spinel and Sapphirine 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 Sapphirine chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Scorpio

Spinel Vs Charoite

Spinel Vs Ametrine

Spinel Vs Azurmalachite

Spinel and Sapphirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Sapphirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Sapphirine Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.40-3.58 whereas that of Sapphirine is 3.40-3.58.