Anthophyllite and Galena Physical Properties

Anthophyllite

Galena

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.56.23

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

Subconchoidal, Brittle, Metallic

1.6 Cleavage

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

Cubic perfect on [001], parting on [111]

1.7 Mohs Hardness

5.5-62.5-2.75

2 10

1.8 Chemical Composition

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

PbS

Anthophyllite and Galena Chemical Formula

While comparing Anthophyllite and Galena 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 Galena 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 Galena- PbS

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Anthophyllite and Galena Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anthophyllite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anthophyllite and Galena Optical Properties during the identification of gemstone. Specific gravity of Anthophyllite is 6.23 whereas that of Galena is 6.23.