Kyanite and Mellite Physical Properties

Kyanite

Mellite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.53-3.65

1.58-1.60

1.5 Fracture

Splintery, Brittle, Metallic

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

1.6 Cleavage

[100] perfect [010] imperfect with 79° angle between

{011} Imperfect

1.7 Mohs Hardness

4-7

1.8 Chemical Composition

Not Available

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

Kyanite and Mellite Chemical Formula

While comparing Kyanite 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 Kyanite and Mellite chemical formula.

Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

Kyanite Vs Swiss blue topaz

Kyanite Vs Blue quartz

Kyanite Vs Kashmir sapphire

Kyanite and Mellite Specific Gravity

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

Blue Gemstones

Tourmaline Bi Color

Quantum Quattro

Cat s Eye

Milky quartz

Kashmir sapphire

Blue quartz