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Crocoite
Crocoite

Grandidierite
Grandidierite



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Crocoite
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Grandidierite

Crocoite and Grandidierite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.90-6.10
2.85-3.00
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
1.6 Cleavage
{110} Distinct, {001} Indistinct, {100} Indistinct
Perfect
1.7 Mohs Hardness
2.5-3
7.5
1.8 Chemical Composition
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Crocoite and Grandidierite Chemical Formula

While comparing Crocoite and Grandidierite 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 Crocoite and Grandidierite chemical formula.

  • Chemical formula of Crocoite- PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Crocoite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.