Galena and Andradite Garnet Physical Properties

Galena

Andradite Garnet

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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

6.233.8-3.9

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Not Available

1.6 Cleavage

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

None

1.7 Mohs Hardness

2.5-2.756.5-7.5

2 10

1.8 Chemical Composition

PbS

Ca₃Fe³⁺₂Si₃O₁₂

Galena and Andradite Garnet Chemical Formula

While comparing Galena and Andradite Garnet 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 Andradite Garnet chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Galena Vs Larvikite

Galena and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.