Microcline and Corundum Physical Properties

Microcline

Corundum

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.633.90-4.05

1 7.18

1.5 Fracture

Uneven, Uneven, Gems

Uneven, Uneven, Gems, Difficult, Fibrous

1.6 Cleavage

{001} Perfect, {010} Good

None – parting in 3 directions

1.7 Mohs Hardness

6-6.59

2 10

1.8 Chemical Composition

KAlSi 3O 8Arthur Thomas , Gemstones (2009)

Al 2O 3Arthur Thomas , Gemstones (2009)

Microcline and Corundum Chemical Formula

While comparing Microcline and Corundum 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 Microcline and Corundum chemical formula.

Chemical formula of Microcline- KAlSi 3O 8Arthur Thomas , Gemstones (2009)
Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Compare Blue Gemstones

Microcline Vs Padparadscha

Microcline Vs Papagoite

Microcline Vs Pearl

Microcline and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Microcline and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Microcline and Corundum Optical Properties during the identification of gemstone. Specific gravity of Microcline is 3.90-4.05 whereas that of Corundum is 3.90-4.05.