Aragonite and Oligoclase Physical Properties

Aragonite

Oligoclase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.962.62-2.67

1 7.18

1.5 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

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

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

3.5-46-6.5

2 10

1.8 Chemical Composition

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

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Aragonite and Oligoclase Chemical Formula

While comparing Aragonite and Oligoclase 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 Oligoclase chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Gems for Virgo

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Aragonite Vs Variscite

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Aragonite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.