Prehnite and Anthophyllite Physical Properties

Prehnite

Anthophyllite

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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

2.80-2.952.9-3.5

1 7.18

1.5 Fracture

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Distinct on [001]

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

1.7 Mohs Hardness

6-6.55.5-6

2 10

1.8 Chemical Composition

Ca₂Al₂Si₃O₁₂(OH)

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

Prehnite and Anthophyllite Chemical Formula

While comparing Prehnite 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 Prehnite and Anthophyllite chemical formula.

Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(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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Prehnite and Anthophyllite Specific Gravity

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