Galena and Anorthite Physical Properties

Galena

Anorthite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.232.77

1 7.18

1.5 Fracture

Subconchoidal, Brittle, Metallic

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

2.5-2.756-6.5

2 10

1.8 Chemical Composition

PbS

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Galena and Anorthite Chemical Formula

While comparing Galena and Anorthite 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 Anorthite chemical formula.

Chemical formula of Galena- PbS
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Grey Gemstones

Galena Vs Clinochlore

Galena Vs Larvikite

Galena Vs Falcons Eye

Galena and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Galena and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Galena is 2.77 whereas that of Anorthite is 2.77.