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Ludlamite
Ludlamite

Arfvedsonite
Arfvedsonite



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Ludlamite
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Arfvedsonite

Ludlamite and Arfvedsonite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.1-3.23.3-3.5
Amber
1 7.18
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Uneven, Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Vitreous, pearly on cleavage
Perfect on [110]
1.7 Mohs Hardness
3-45-6
Amber
2 10
1.8 Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
NaNa2(Fe++4Fe+++)Si8O22(OH)2

Ludlamite and Arfvedsonite Chemical Formula

While comparing Ludlamite and Arfvedsonite 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 Arfvedsonite chemical formula.

  • Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2

Ludlamite and Arfvedsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Arfvedsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Arfvedsonite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 3.3-3.5 whereas that of Arfvedsonite is 3.3-3.5.