Marialite and Spinel Physical Properties

Marialite

Spinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.503.64-3.66

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct on {100} and {110}

None, but may exhibit slight parting

1.7 Mohs Hardness

5.5-68

2 10

1.8 Chemical Composition

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

MgAl₂O₄

Marialite and Spinel Chemical Formula

While comparing Marialite 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 Marialite and Spinel chemical formula.

Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Spinel- MgAl₂O₄

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Marialite and Spinel Specific Gravity

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