Carnallite and Ludlamite Physical Properties

Carnallite

Ludlamite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.63.1-3.2

1 7.18

2.5 Fracture

Violet, Conchoidal, Brittle, Conchoidal, Brittle

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

2.6 Cleavage

None

Vitreous, pearly on cleavage

2.7 Mohs Hardness

2.53-4

2 10

2.11 Chemical Composition

KMgCl3•6(H2O)

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

Carnallite and Ludlamite Chemical Formula

While comparing Carnallite 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 Carnallite and Ludlamite chemical formula.

Chemical formula of Carnallite- KMgCl3•6(H2O)
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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Carnallite and Ludlamite Specific Gravity

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