Spodumene and Ludlamite Physical Properties

Spodumene

Ludlamite

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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

3.15-3.213.1-3.2

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Vitreous, pearly on cleavage

1.7 Mohs Hardness

6-73-4

2 10

1.8 Chemical Composition

LiAlSi₂O₆

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Spodumene and Ludlamite Chemical Formula

While comparing Spodumene and Ludlamite 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 Ludlamite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Spodumene and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.