Legrandite and Calcite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.98-4.04
  
2.67-2.73
  
Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Imperfect, poor one {100}
  
Perfect on [10 1 1] three directions with angle of 74° 55
  
Mohs Hardness
4.5-5
  
3
  
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
CaCO 3Ulrich Henn and Claudio C.
  
Legrandite and Calcite Chemical Formula
While comparing Legrandite and Calcite 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 Calcite 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 Calcite- CaCO 3Ulrich Henn and Claudio C.
Legrandite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.