Umbalite and Amazonite Physical Properties

Umbalite

Amazonite

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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

3.62-4.33

2.55-2.57

1.5 Fracture

Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Not Available

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

1.7 Mohs Hardness

7-7.5

6-6.5

1.8 Chemical Composition

Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

KAlSi₃O₈

Umbalite and Amazonite Chemical Formula

While comparing Umbalite and Amazonite 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 Umbalite and Amazonite chemical formula.

Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Chemical formula of Amazonite- KAlSi₃O₈

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Umbalite and Amazonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Umbalite and Amazonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Amazonite Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 2.55-2.57 whereas that of Amazonite is 2.55-2.57.