Mottramite and Ludlamite Physical Properties

Mottramite

Ludlamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.93.1-3.2

1 7.18

1.5 Fracture

Sub-Conchoidal, Brittle, Metallic

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

1.6 Cleavage

None observed

Vitreous, pearly on cleavage

1.7 Mohs Hardness

33-4

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

Mottramite and Ludlamite Chemical Formula

While comparing Mottramite 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 Mottramite 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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Mottramite and Ludlamite Specific Gravity

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