Zoisite and Plumbogummite Physical Properties

Zoisite

Plumbogummite

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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

3.20-3.504.014

1 7.18

1.5 Fracture

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

Uneven, Conchoidal

1.6 Cleavage

Perfect {010} imperfect {100}

None

1.7 Mohs Hardness

6-74-5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Not Available

Zoisite and Plumbogummite Chemical Formula

While comparing Zoisite and Plumbogummite 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 Zoisite and Plumbogummite chemical formula.

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

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Zoisite and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 4.014 whereas that of Plumbogummite is 4.014.