Legrandite and Cordierite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.98-4.04
2.57-2.66
Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Subconchoidal, Conchoidal, Brittle
Cleavage
Imperfect, poor one {100}
Fair on {100}, poor on {001} and {010}
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
Mg2Al4Si5O18
Legrandite and Cordierite Chemical Formula
While comparing Legrandite and Cordierite 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 Cordierite 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 Cordierite- Mg2Al4Si5O18
Legrandite and Cordierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.