Rock Crystal and Aragonite Physical Properties

Rock Crystal

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

2.652.93-2.96

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

73.5-4

2 10

1.8 Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)

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

Rock Crystal and Aragonite Chemical Formula

While comparing Rock Crystal 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 Rock Crystal and Aragonite chemical formula.

Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Rock Crystal Vs Sardonyx

Rock Crystal Vs Serendibite

Rock Crystal Vs Scorzalite

Rock Crystal and Aragonite Specific Gravity

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