Plumbogummite and Zoisite Physical Properties

Plumbogummite

Zoisite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0143.20-3.50

1 7.18

1.5 Fracture

Uneven, Conchoidal

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

1.6 Cleavage

None

Perfect {010} imperfect {100}

1.7 Mohs Hardness

4-56-7

2 10

1.8 Chemical Composition

Not Available

Ca₂Al₃(SiO₄)₃(OH)

Plumbogummite and Zoisite Chemical Formula

While comparing Plumbogummite and Zoisite 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 Plumbogummite and Zoisite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Plumbogummite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Plumbogummite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.