Anthophyllite and Covellite Physical Properties

Anthophyllite

Covellite

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1 Physical Properties

1.1 Tenacity

Not Available

Flexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.54.6-4.76

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

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

Perfect on {0001}

1.7 Mohs Hardness

5.5-6Not Available

2 10

1.8 Chemical Composition

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

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Anthophyllite and Covellite Chemical Formula

While comparing Anthophyllite and Covellite 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 Covellite 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 Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Anthophyllite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.