Pargasite and Langbeinite Physical Properties

Pargasite

Langbeinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Slowly dissolves in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.26Not Available

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Conchoidal, Brittle

1.6 Cleavage

{110} perfect

None

1.7 Mohs Hardness

5-63.5-4

2 10

1.8 Chemical Composition

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Pargasite and Langbeinite Chemical Formula

While comparing Pargasite and Langbeinite 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 Pargasite and Langbeinite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Pargasite and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is Not Available whereas that of Langbeinite is Not Available.