Boleite and Umbalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.05
3.62-4.33
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)
Cleavage
[001] perfect
Not Available
Mohs Hardness
3-3.5
7-7.5
Chemical Composition
Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Boleite and Umbalite Chemical Formula
While comparing Boleite 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 Boleite and Umbalite chemical formula.
- Chemical formula of Boleite- Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Boleite and Umbalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Boleite and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boleite and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Boleite is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.