Anthophyllite and Bertrandite Physical Properties

Anthophyllite

Bertrandite

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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

2.9-3.5

2.59-2.60

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

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

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

5.5-6

6-7

1.8 Chemical Composition

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Anthophyllite and Bertrandite Chemical Formula

While comparing Anthophyllite and Bertrandite 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 Bertrandite 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 Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Brown Gemstones

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Anthophyllite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.