Galena and Anthophyllite Physical Properties

Galena

Anthophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.232.9-3.5

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

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

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

1.7 Mohs Hardness

2.5-2.755.5-6

2 10

1.8 Chemical Composition

PbS

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

Galena and Anthophyllite Chemical Formula

While comparing Galena 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 Galena and Anthophyllite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Grey Gemstones

Galena Vs Clinochlore

Galena Vs Larvikite

Galena Vs Falcons Eye

Galena and Anthophyllite Specific Gravity

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