Legrandite and Boracite Physical Properties
Specific Gravity
3.98-4.04
2.95-2.96
Fracture
Conchoidal
Conchoidal
Cleavage
Imperfect, poor one {100}
None
Mohs Hardness
4.5-5
7-7.5
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Boracite Chemical Formula
While comparing Legrandite and Boracite 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 Legrandite and Boracite chemical formula.
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Boracite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Boracite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Boracite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.95-2.96 whereas that of Boracite is 2.95-2.96.