Lawsonite and Ludlamite Physical Properties

Lawsonite

Ludlamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.093.1-3.2

1 7.18

1.5 Fracture

White, Yellow, Pale blue, Brittle, Uneven

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

1.6 Cleavage

Perfect on {100} and {010}, imperfect on {101}

Vitreous, pearly on cleavage

1.7 Mohs Hardness

83-4

2 10

1.8 Chemical Composition

Not Available

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

Lawsonite and Ludlamite Chemical Formula

While comparing Lawsonite 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 Lawsonite and Ludlamite chemical formula.

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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Lawsonite and Ludlamite Specific Gravity

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