Peridot and Spessartine Physical Properties

Peridot

Spessartine

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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

1.54-1.554.12-4.18

1 7.18

1.5 Fracture

Conchoidal

ConchoidalArthur Thomas, Conchoidal, Brittle

1.6 Cleavage

Poor

{???} Distinct

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Peridot and Spessartine Chemical Formula

While comparing Peridot and Spessartine 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 Spessartine chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Peridot and Spessartine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Spessartine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Spessartine Optical Properties during the identification of gemstone. Specific gravity of Peridot is 4.12-4.18 whereas that of Spessartine is 4.12-4.18.