Zoisite and Rhodolite Physical Properties

Zoisite

Rhodolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.503.84

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

Perfect {010} imperfect {100}

none, may show indistinct parting

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Mg,Fe)₃Al₂Si₃O₁₂

Zoisite and Rhodolite Chemical Formula

While comparing Zoisite and Rhodolite 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 Rhodolite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Zoisite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 3.84 whereas that of Rhodolite is 3.84.