Elbaite and Nuummite Physical Properties
Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
3.18-3.37
Fracture
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal
Cleavage
Poor/indistinct on {1120} and {1011}
Perfect on 210
Mohs Hardness
7
5.5-6
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Not Available
Elbaite and Nuummite Chemical Formula
While comparing Elbaite and Nuummite 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 Elbaite and Nuummite chemical formula.
- Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references >
Elbaite and Nuummite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Elbaite and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.
