Peridot and Pumpellyite Physical Properties

Peridot

Pumpellyite

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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

1.54-1.553.20-3.30

1 7.18

1.5 Fracture

Conchoidal

Not Available

1.6 Cleavage

Poor

Not Available

1.7 Mohs Hardness

6.5-75-6

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

Peridot and Pumpellyite Chemical Formula

While comparing Peridot and Pumpellyite 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 Peridot and Pumpellyite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

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Peridot and Pumpellyite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Pumpellyite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Pumpellyite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.20-3.30 whereas that of Pumpellyite is 3.20-3.30.