Spinel and Inderite Physical Properties

Spinel

Inderite

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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

3.64-3.661.79

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven

1.6 Cleavage

None, but may exhibit slight parting

{110} Good

1.7 Mohs Hardness

82.5

2 10

1.8 Chemical Composition

MgAl₂O₄

MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Spinel and Inderite Chemical Formula

While comparing Spinel and Inderite 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 Inderite chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Inderite- MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Spinel and Inderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Inderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Inderite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 1.79 whereas that of Inderite is 1.79.