Galena and Catapleiite Physical Properties

Galena

Catapleiite

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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

6.232.72

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

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

{110} Perfect, {010} Perfect

1.7 Mohs Hardness

2.5-2.755-6

2 10

1.8 Chemical Composition

PbS

Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Galena and Catapleiite Chemical Formula

While comparing Galena and Catapleiite 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 Catapleiite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Galena and Catapleiite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Galena is 2.72 whereas that of Catapleiite is 2.72.