Jun 21, 2017

Alstonite or Bromlite


Another rare gem type discovered from mining pits. This particular gem type has special demand from gem collectors and experts due to it’s rarity. In rural town called Gilimale close to the Gem city of Sri Lanka Ratnapura , 


Alstonite or Bromlite weighing 17.5 was first discovered. These are also rarely found in mining pits in Madagascar and Russia. Miners were initially unable to identify this gem type. Therefore they presented it to the veteran gem expert Dr Dunil Palitha Gunasekara. Using his expertise he bought the gem, cut it into 15 pieces and sent to a lab in USA for the identification. 

They were able to finally conclude that this is cut and polished bromlite. Dr Dunil Palitha was the first to introduce Bromlite gems to the world. These are colorless. But once cut and polished it becomes very bright. Density is 9 units. Refraction index is 1.719 and 1.733. It has two refractive indexes. Specific Gravity is 3.02 units. Due to it’s rarity fake bromlites are also exist on the market.