Pargasite and Anthophyllite Physical Properties

Pargasite

Anthophyllite

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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

3.04-3.262.9-3.5

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

{110} perfect

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

1.7 Mohs Hardness

5-65.5-6

2 10

1.8 Chemical Composition

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Pargasite and Anthophyllite Chemical Formula

While comparing Pargasite 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 Pargasite and Anthophyllite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Pargasite and Anthophyllite Specific Gravity

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