Hollandite and Ludlamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.05
3.1-3.2
Fracture
Brittle, Metallic
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Distinct / Good, Prismatic
Vitreous, pearly on cleavage
Chemical Composition
Ba(Mn++++,Mn++)8O16
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hollandite and Ludlamite Chemical Formula
While comparing Hollandite 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 Hollandite and Ludlamite chemical formula.
- Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hollandite and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hollandite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.