Triplite and Spinel Physical Properties

Triplite

Spinel

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.85-3.943.64-3.66

1 7.18

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Fracture

Conchoidal, Uneven

Cleavage

{010} Good, {100} Distinct

None, but may exhibit slight parting

Mohs Hardness

5-5.58

2 10

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Chemical Composition

(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

MgAl₂O₄

Triplite and Spinel Chemical Formula

While comparing Triplite 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 Triplite and Spinel chemical formula.

Chemical formula of Triplite- (Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Spinel- MgAl₂O₄

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Triplite and Spinel Specific Gravity

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