Peridot and Friedelite Physical Properties

Peridot

Friedelite

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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

1.54-1.553.06-3.19

1 7.18

1.5 Fracture

Conchoidal

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

1.6 Cleavage

Poor

{010} Perfect

1.7 Mohs Hardness

6.5-74-5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Peridot and Friedelite Chemical Formula

While comparing Peridot and Friedelite 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 Friedelite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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Peridot and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.