Selenite and Triplite Physical Properties

Selenite

Triplite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.85-3.94

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

{010} Good, {100} Distinct

1.7 Mohs Hardness

25-5.5

2 10

1.8 Chemical Composition

Not Available

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

Selenite and Triplite Chemical Formula

While comparing Selenite 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 Selenite and Triplite chemical formula.

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

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Selenite and Triplite Specific Gravity

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