Fuchsite and Galena Physical Properties

Fuchsite

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

2.77-2.886.23

1 7.18

1.5 Fracture

Uneven

Subconchoidal, Brittle, Metallic

1.6 Cleavage

Perfect basal

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

1.7 Mohs Hardness

2.52.5-2.75

2 10

1.8 Chemical Composition

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

PbS

Fuchsite and Galena Chemical Formula

While comparing Fuchsite 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 Fuchsite and Galena chemical formula.

Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
Chemical formula of Galena- PbS

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Fuchsite and Galena Specific Gravity

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