Pargasite and Rhodolite Physical Properties

Pargasite

Rhodolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.263.84

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Conchoidal

1.6 Cleavage

{110} perfect

none, may show indistinct parting

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

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

(Mg,Fe)₃Al₂Si₃O₁₂

Pargasite and Rhodolite Chemical Formula

While comparing Pargasite and Rhodolite 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 Rhodolite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Pargasite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 3.84 whereas that of Rhodolite is 3.84.