Aragonite and Pyrope Physical Properties

Aragonite

Pyrope

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Dilute acid

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.62-3.87

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

None

1.7 Mohs Hardness

3.5-47-7.5

2 10

1.8 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Aragonite and Pyrope Chemical Formula

While comparing Aragonite and Pyrope 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 Aragonite and Pyrope chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Aragonite and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.