Demantoid and Galena Physical Properties

Demantoid

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

3.77-3.956.23

1 7.18

1.5 Fracture

Not Available

Subconchoidal, Brittle, Metallic

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

6.52.5-2.75

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

PbS

Demantoid and Galena Chemical Formula

While comparing Demantoid 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 Demantoid and Galena chemical formula.

Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
Chemical formula of Galena- PbS

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Demantoid Vs Emerald

Demantoid and Galena Specific Gravity

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