Hardystonite and Pezzottaite Physical Properties

Hardystonite

Pezzottaite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.396-3.4432.90-3.14

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

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

Imperfect; basal

1.7 Mohs Hardness

3-47.5-8

2 10

1.8 Chemical Composition

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

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Hardystonite and Pezzottaite Chemical Formula

While comparing Hardystonite and Pezzottaite 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 Hardystonite and Pezzottaite chemical formula.

Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Compare White Gemstones

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Hardystonite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hardystonite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hardystonite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Hardystonite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.