Pleonaste and Thulite Physical Properties

Pleonaste

Thulite

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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

3.803.1

1 7.18

1.5 Fracture

Not Available

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

Perfect {010} imperfect {100}

1.7 Mohs Hardness

86-7

2 10

1.8 Chemical Composition

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Ca₂Al₃(SiO₄)₃(OH)

Pleonaste and Thulite Chemical Formula

While comparing Pleonaste and Thulite 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 Pleonaste and Thulite chemical formula.

Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Pleonaste and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pleonaste and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pleonaste and Thulite Optical Properties during the identification of gemstone. Specific gravity of Pleonaste is 3.1 whereas that of Thulite is 3.1.