Anthophyllite and Prehnite Physical Properties

Anthophyllite

Prehnite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.52.80-2.95

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

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

1.6 Cleavage

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

Distinct on [001]

1.7 Mohs Hardness

5.5-66-6.5

2 10

1.8 Chemical Composition

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

Ca₂Al₂Si₃O₁₂(OH)

Anthophyllite and Prehnite Chemical Formula

While comparing Anthophyllite and Prehnite 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 Anthophyllite and Prehnite chemical formula.

Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)

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Anthophyllite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.