Phlogopite and Anthophyllite Physical Properties

Phlogopite

Anthophyllite

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.852.9-3.5

1 7.18

1.5 Fracture

None, Uneven

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Perfect basal (001)

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

1.7 Mohs Hardness

2-2.55.5-6

2 10

1.8 Chemical Composition

Not Available

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

Phlogopite and Anthophyllite Chemical Formula

While comparing Phlogopite 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 Phlogopite and Anthophyllite 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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Phlogopite and Anthophyllite Specific Gravity

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