Spodumene and Peridot Physical Properties

Spodumene

Peridot

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.211.54-1.55

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Conchoidal

1.6 Cleavage

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

Poor

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

LiAlSi₂O₆

(Mg,Fe)₂SiO₄

Spodumene and Peridot Chemical Formula

While comparing Spodumene and Peridot 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 Spodumene and Peridot chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Spodumene and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Peridot Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 1.54-1.55 whereas that of Peridot is 1.54-1.55.