Corundum and Meionite Physical Properties

Corundum

Meionite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.052.78

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Difficult, Fibrous

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

1.6 Cleavage

None – parting in 3 directions

{???} Distinct, {???} Indistinct

1.7 Mohs Hardness

95-6

2 10

1.8 Chemical Composition

Al 2O 3Arthur Thomas , Gemstones (2009)

3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)

Corundum and Meionite Chemical Formula

While comparing Corundum and Meionite 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 Corundum and Meionite chemical formula.

Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Meionite- 3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)

Compare Violet Gemstones

Corundum Vs Hexagonite

Corundum Vs Hackmanite

Corundum Vs Garnet

Corundum and Meionite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Corundum and Meionite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Meionite Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.78 whereas that of Meionite is 2.78.