Umbalite and Andesine Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.62-4.33
2.65-2.69
Fracture
Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
Cleavage
Not Available
Perfect on {001}, good on {010}
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
(Na,Ca)Al1-2Si3-2O8
Umbalite and Andesine Chemical Formula
While comparing Umbalite and Andesine 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 Andesine 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 Andesine- (Na,Ca)Al1-2Si3-2O8
Umbalite and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Umbalite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.