Augite and Aragonite Physical Properties

Augite

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.562.93-2.96

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

{110} Perfect, {010} Indistinct

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

1.7 Mohs Hardness

5.5-63.5-4

2 10

1.8 Chemical Composition

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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

Augite and Aragonite Chemical Formula

While comparing Augite and Aragonite 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 Augite and Aragonite chemical formula.

Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Augite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Augite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.