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Ludlamite
Ludlamite

Cobaltite
Cobaltite



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Ludlamite
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Cobaltite

Ludlamite and Cobaltite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.1-3.26.3
Amber
1 7.18
1.5 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
1.6 Cleavage
Vitreous, pearly on cleavage
{100} Good, {010} Good, {001} Good
1.7 Mohs Hardness
3-45.5
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
CoAsSAnthony et al , Handbook of mineralogy (2001)

Ludlamite and Cobaltite Chemical Formula

While comparing Ludlamite and Cobaltite 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 Cobaltite 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 Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Ludlamite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 6.3 whereas that of Cobaltite is 6.3.