Legrandite and Glaucophane Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.98-4.04
3-3.15
Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Conchoidal, Brittle, Conchoidal
Cleavage
Imperfect, poor one {100}
Good on [110] and on [001]
Mohs Hardness
4.5-5
6.0-6.5
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
[ ]Na2(Mg3Al2)Si8O22(OH)2
Legrandite and Glaucophane Chemical Formula
While comparing Legrandite and Glaucophane 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 Glaucophane 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 Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Legrandite and Glaucophane Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 3-3.15 whereas that of Glaucophane is 3-3.15.