Erythrite and Triplite Physical Properties

Erythrite

Triplite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.063.85-3.94

1 7.18

1.5 Fracture

Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

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

1.6 Cleavage

Perfect on {010}; poor on {100} and { 1 02}.

{010} Good, {100} Distinct

1.7 Mohs Hardness

Not Available5-5.5

2 10

1.8 Chemical Composition

Co3(AsO4)2•8(H2O)

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

Erythrite and Triplite Chemical Formula

While comparing Erythrite 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 Erythrite and Triplite chemical formula.

Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
Chemical formula of Triplite- (Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

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Erythrite and Triplite Specific Gravity

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