Riebeckite and Ulexite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.44
1.65-1.99
Fracture
Uneven, Splintery, Brittle
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
{010} Perfect, {110} Perfect
Mohs Hardness
5.0-6.0
2-2.5
Chemical Composition
Not Available
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Riebeckite and Ulexite Chemical Formula
While comparing Riebeckite and Ulexite 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 Riebeckite and Ulexite chemical formula.
>- Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Riebeckite and Ulexite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Riebeckite and Ulexite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Ulexite Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 1.65-1.99 whereas that of Ulexite is 1.65-1.99.