Charlesite and Crocoite Physical Properties

Charlesite

Crocoite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.795.90-6.10

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

1.6 Cleavage

Perfect on {10bar10}

{110} Distinct, {001} Indistinct, {100} Indistinct

1.7 Mohs Hardness

2.52.5-3

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Charlesite and Crocoite Chemical Formula

While comparing Charlesite 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 Charlesite and Crocoite chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Charlesite and Crocoite Specific Gravity

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