Legrandite and Crocoite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.98-4.04
5.90-6.10
Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Cleavage
Imperfect, poor one {100}
{110} Distinct, {001} Indistinct, {100} Indistinct
Mohs Hardness
4.5-5
2.5-3
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Crocoite Chemical Formula
While comparing Legrandite and Crocoite 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 Crocoite 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 Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Crocoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.