Mellite and Pleonaste Physical Properties

Mellite

Pleonaste

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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

1.58-1.603.80

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Not Available

1.6 Cleavage

{011} Imperfect

Not Available

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

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

Mellite and Pleonaste Chemical Formula

While comparing Mellite and Pleonaste 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 Mellite and Pleonaste chemical formula.

Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Compare Brown Gemstones

Mellite Vs Narsarsukite

Mellite Vs Morion

Mellite Vs Mother of Pearl

Mellite and Pleonaste Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mellite and Pleonaste Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mellite and Pleonaste Optical Properties during the identification of gemstone. Specific gravity of Mellite is 3.80 whereas that of Pleonaste is 3.80.