Umbalite and Tanzanite Physical Properties

Umbalite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

3.62-4.33

3.35

1.5 Fracture

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

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

7-7.5

6.5-7

1.8 Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Umbalite and Tanzanite Chemical Formula

While comparing Umbalite and Tanzanite 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 Tanzanite 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 Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Umbalite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Umbalite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 3.35 whereas that of Tanzanite is 3.35.