Sard and Hardystonite Physical Properties

Sard

Hardystonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.633.396-3.443

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

Not Available

[001] good, [100] and [110] fair

1.7 Mohs Hardness

6.5-73-4

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Sard and Hardystonite Chemical Formula

While comparing Sard and Hardystonite 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 Hardystonite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

Sard Vs Sodalite

Sard Vs Spinel

Sard Vs Sillimanite

Sard and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Sard is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.