Sugilite and Galena Physical Properties

Sugilite

Galena

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.69-2.796.23

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Subconchoidal, Brittle, Metallic

1.6 Cleavage

Poor on {0001}

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

1.7 Mohs Hardness

5.5-6.52.5-2.75

2 10

1.8 Chemical Composition

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

PbS

Sugilite and Galena Chemical Formula

While comparing Sugilite 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 Sugilite and Galena chemical formula.

Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Galena- PbS

Compare Gems for Virgo

Sugilite Vs Amazonite

Sugilite Vs Ajoite

Sugilite Vs Chrome Diopside

Sugilite and Galena Specific Gravity

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