Cordierite and Triplite Physical Properties

Cordierite

Triplite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.57-2.663.85-3.94

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

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

1.6 Cleavage

Fair on {100}, poor on {001} and {010}

{010} Good, {100} Distinct

1.7 Mohs Hardness

7-7.55-5.5

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

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

Cordierite and Triplite Chemical Formula

While comparing Cordierite and Triplite 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 Cordierite and Triplite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Triplite- (Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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Cordierite and Triplite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Triplite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Triplite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 3.85-3.94 whereas that of Triplite is 3.85-3.94.