Atacamite and Ludlamite Physical Properties

Atacamite

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

3.745-3.7763.1-3.2

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

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

1.6 Cleavage

Perfect on {010}, fair on {101}

Vitreous, pearly on cleavage

1.7 Mohs Hardness

3-3.53-4

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

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

Atacamite and Ludlamite Chemical Formula

While comparing Atacamite 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 Atacamite and Ludlamite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
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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Atacamite and Ludlamite Specific Gravity

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