VivianiteIn the early 1980's, the Morococala mine produced some of the largest and most spectacular Vivianite specimens in history. An incredibly large "room" of crystals was discovered, producing giant plates of crystals and individual singles measuring up to 60cm(!) which were just pouring out of the mine for very a brief period of time. Then the mine manager decided that the miners were too distracted collecting Vivianite and not attending to their duties

It may be more of a Quartz specimen than a Cassiterite specimen

this is something that is very rarely offered on the open market

Specimen # AMBER51707

Specimen # BOL711B103

The pieces from Bolivia are reminiscent of the classic and highly sought after Zambian specimens

Specimen # BROOK31904

and according to the locals

producing giant plates of crystals and individual singles measuring up to 60cm(

The fact that there are mines on this mountain is incredible considering the elevation and treacherous conditions

A classic association specimen from one of the most well-known mines in Bolivia

are included with an unknown black mineral (possibly Jamesonite)

it is truly only known from a handful of localities in well-crystallized display specimens