Carnelian and Spodumene Physical Properties

Carnelian

Spodumene

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.64

3.15-3.21

1.5 Fracture

Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

Absent

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

1.7 Mohs Hardness

6.5-7

6-7

1.8 Chemical Composition

SiO₂

LiAlSi₂O₆

Carnelian and Spodumene Chemical Formula

While comparing Carnelian and Spodumene 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 Carnelian and Spodumene chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Spodumene- LiAlSi₂O₆

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Carnelian and Spodumene Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.