Spinel and Chiastolite Physical Properties

Spinel

Chiastolite

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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

3.64-3.663.00-3.15

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

85-5.5

2 10

1.8 Chemical Composition

MgAl₂O₄

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

Spinel and Chiastolite Chemical Formula

While comparing Spinel and Chiastolite 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 Chiastolite chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Chiastolite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

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Spinel and Chiastolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Chiastolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Chiastolite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.00-3.15 whereas that of Chiastolite is 3.00-3.15.