Vivianite and Spodumene Physical Properties

Vivianite

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

2.64-2.703.15-3.21

1 7.18

1.5 Fracture

(e.g. graphite).

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

{010} Perfect

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

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

LiAlSi₂O₆

Vivianite and Spodumene Chemical Formula

While comparing Vivianite 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 Vivianite and Spodumene chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Spodumene- LiAlSi₂O₆

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Vivianite and Spodumene Specific Gravity

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