Chalcedony and Legrandite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.98-4.04
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
Absent
Imperfect, poor one {100}
Mohs Hardness
6.5-7
4.5-5
Chemical Composition
SiO2
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Legrandite Chemical Formula
While comparing Chalcedony and Legrandite 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 Chalcedony and Legrandite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Legrandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.