Grandidierite and Mellite Physical Properties

Grandidierite

Mellite

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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

2.85-3.001.58-1.60

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

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

1.6 Cleavage

Perfect

{011} Imperfect

1.7 Mohs Hardness

7.52

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Mellite Chemical Formula

While comparing Grandidierite and Mellite 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 Grandidierite and Mellite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Compare Green Gemstones

Grandidierite Vs Hurlbutite

Grandidierite Vs Hydrogrossular

Grandidierite Vs Hiddenite

Grandidierite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.