Almandine and Crocoite Physical Properties

Almandine

Crocoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.305.90-6.10

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

1.6 Cleavage

none

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

1.7 Mohs Hardness

7-7.52.5-3

2 10

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Almandine and Crocoite Chemical Formula

While comparing Almandine 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 Almandine and Crocoite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Almandine and Crocoite Specific Gravity

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