Galena and Fibrolite Physical Properties

Galena

Fibrolite

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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

6.233.14-3.25

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

2.5-2.756-7

2 10

1.8 Chemical Composition

PbS

Al 2SiO 5Arthur Thomas , Gemstones (2009)

Galena and Fibrolite Chemical Formula

While comparing Galena and Fibrolite 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 Fibrolite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

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Galena and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.