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Rubellite
Rubellite

Crocoite
Crocoite



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Rubellite
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Crocoite

Rubellite and Crocoite 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
3.01-3.065.90-6.10
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
1.6 Cleavage
Not Available
{110} Distinct, {001} Indistinct, {100} Indistinct
1.7 Mohs Hardness
7-7.52.5-3
Amber
2 10
1.8 Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Rubellite and Crocoite Chemical Formula

While comparing Rubellite 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 Rubellite and Crocoite chemical formula.

  • Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  • Chemical formula of Crocoite- PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Rubellite and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.