Ludlamite and Carnallite Physical Properties

Ludlamite

Carnallite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.1-3.21.6

1 7.18

1.5 Fracture

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

Violet, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

Vitreous, pearly on cleavage

None

1.7 Mohs Hardness

3-42.5

2 10

1.8 Chemical Composition

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

KMgCl3•6(H2O)

Ludlamite and Carnallite Chemical Formula

While comparing Ludlamite and Carnallite 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 Ludlamite and Carnallite chemical formula.

Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Carnallite- KMgCl3•6(H2O)

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Ludlamite and Carnallite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Carnallite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Carnallite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 1.6 whereas that of Carnallite is 1.6.