Anthophyllite and Riebeckite Physical Properties

Anthophyllite

Riebeckite

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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

2.9-3.53.28-3.44

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Uneven, Splintery, Brittle

1.6 Cleavage

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

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

1.7 Mohs Hardness

5.5-65.0-6.0

2 10

1.8 Chemical Composition

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

Not Available

Anthophyllite and Riebeckite Chemical Formula

While comparing Anthophyllite and Riebeckite 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 Riebeckite chemical formula.

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

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Anthophyllite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.