Violane and Umbalite Physical Properties

Violane

Umbalite

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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

3.22-3.403.62-4.33

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

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

Violane and Umbalite Chemical Formula

While comparing Violane and Umbalite 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 Violane and Umbalite chemical formula.

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

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Violane and Umbalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Violane and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Violane and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Violane is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.