Anthophyllite and Gahnite Physical Properties

Anthophyllite

Gahnite

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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

4.00-4.62

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Conchoidal, Uneven

1.6 Cleavage

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

Indistinct parting on [111]

1.7 Mohs Hardness

5.5-6

7.5-8

1.8 Chemical Composition

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

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Anthophyllite and Gahnite Chemical Formula

While comparing Anthophyllite and Gahnite 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 Gahnite 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 Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Brown Gemstones

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Anthophyllite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.