Sard and Dioptase Physical Properties

Sard

Dioptase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.633.25-3.35

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

Not Available

Perfect in three directions

1.7 Mohs Hardness

6.5-75

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sard and Dioptase Chemical Formula

While comparing Sard and Dioptase 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 Sard and Dioptase chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

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Sard Vs Spinel

Sard and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Sard is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.