Phlogopite and Antigorite Physical Properties

Phlogopite

Antigorite

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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

2.78-2.852.58-2.80

1 7.18

1.5 Fracture

None, Uneven

Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

Perfect basal (001)

{001} Good

1.7 Mohs Hardness

2-2.55-5.5

2 10

1.8 Chemical Composition

Not Available

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Phlogopite and Antigorite Chemical Formula

While comparing Phlogopite and Antigorite 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 Antigorite chemical formula.

Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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Phlogopite and Antigorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.