Almandine and Microcline Physical Properties

Almandine

Microcline

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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

3.95-4.30

2.55-2.63

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Uneven, Uneven, Gems

1.6 Cleavage

none

{001} Perfect, {010} Good

1.7 Mohs Hardness

7-7.5

6-6.5

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

KAlSi 3O 8Arthur Thomas , Gemstones (2009)

Almandine and Microcline Chemical Formula

While comparing Almandine and Microcline 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 Almandine and Microcline chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Microcline- KAlSi 3O 8Arthur Thomas , Gemstones (2009)

Compare Red Gemstones

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Almandine Vs Black Opal

Almandine and Microcline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Microcline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Microcline Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.55-2.63 whereas that of Microcline is 2.55-2.63.