Zoisite and Anthophyllite Physical Properties

Zoisite

Anthophyllite

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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

3.20-3.502.9-3.5

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Perfect {010} imperfect {100}

{110} Perfect, {???} Distinct, {???} Distinct

1.7 Mohs Hardness

6-75.5-6

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Zoisite and Anthophyllite Chemical Formula

While comparing Zoisite and Anthophyllite 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 Anthophyllite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Zoisite and Anthophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Anthophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Anthophyllite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 2.9-3.5 whereas that of Anthophyllite is 2.9-3.5.