Ulexite and Grandidierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.65-1.99
2.85-3.00
Fracture
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
{010} Perfect, {110} Perfect
Perfect
Chemical Composition
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Ulexite and Grandidierite Chemical Formula
While comparing Ulexite and Grandidierite 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 Ulexite and Grandidierite chemical formula.
- Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Ulexite and Grandidierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ulexite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ulexite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Ulexite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.