Polyhalite and Triplite Physical Properties

Polyhalite

Triplite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.783.85-3.94

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

Perfect on {10 1 }; parting on {010}

{010} Good, {100} Distinct

1.7 Mohs Hardness

3.55-5.5

2 10

1.8 Chemical Composition

Not Available

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

Polyhalite and Triplite Chemical Formula

While comparing Polyhalite 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 Polyhalite and Triplite chemical formula.

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

Compare Red Gemstones

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Polyhalite Vs Vanadinite

Polyhalite and Triplite Specific Gravity

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