Galena and Imperial Topaz Physical Properties

Galena

Imperial Topaz

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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

6.233.49-3.57

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Uneven

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

2.5-2.758

2 10

1.8 Chemical Composition

PbS

Not Available

Galena and Imperial Topaz Chemical Formula

While comparing Galena and Imperial Topaz 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 Imperial Topaz chemical formula.

Chemical formula of Galena- PbS

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Galena and Imperial Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Imperial Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Imperial Topaz Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.49-3.57 whereas that of Imperial Topaz is 3.49-3.57.