Cassiterite (“drill bit” twins) Boracite Like many Ferberites

Like many Ferberites

The piece was mined in the latter half of 2009

The piece displays well on its own from a few angles

There is a little bit of roughness here and there

Cassiterite (“drill bit” twins) Boracite Like many FerberitesHuanuni is actually the RICHEST Cassiterite deposit in the world, and although its best known for its phosphate species, occasionally some fine quality Cassiterite specimens are found. This attractive, classic, sharp, lustrous, jet black group of drill bit twinned crystals is certainly fine quality for the species and the locality. Good quality all the way around, and if youre a collector of Cassiterites or Bolivian minerals, this would make a great