Hollandite and Danburite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.05
2.97-3.03
Fracture
Brittle, Metallic
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
Distinct / Good, Prismatic
{001} Poor
Chemical Composition
Ba(Mn++++,Mn++)8O16
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hollandite and Danburite Chemical Formula
While comparing Hollandite and Danburite 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 Danburite chemical formula.
- Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
- Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hollandite and Danburite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hollandite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.