Charlesite and Pezzottaite Physical Properties

Charlesite

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

1.792.90-3.14

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

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

1.6 Cleavage

Perfect on {10bar10}

Imperfect; basal

1.7 Mohs Hardness

2.57.5-8

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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

Charlesite and Pezzottaite Chemical Formula

While comparing Charlesite 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 Charlesite and Pezzottaite chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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Charlesite and Pezzottaite Specific Gravity

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