Anglesite and Umbalite Physical Properties

Anglesite

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

6.30-6.393.62-4.33

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[001] good, [210] distinct

Not Available

1.7 Mohs Hardness

3-3.57-7.5

2 10

1.8 Chemical Composition

PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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

Anglesite and Umbalite Chemical Formula

While comparing Anglesite 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 Anglesite and Umbalite chemical formula.

Chemical formula of Anglesite- PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

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Anglesite and Umbalite Specific Gravity

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