Columbite-(Fe) with Muscovite (significant XL)

Item Description

A very stout and very hefty, well-formed crystal of Columbite from this little known pegmatite in Rio Grande do Norte State of Brazil. The crystal has complex forms and is accompanied by a 2.5cm side car crystal on one side. Blades of golden-yellow muscovite are prevalent on the backside and a little on the front. A commanding and hefty (approx 260 grams) Columbite-(Fe) crystal - this is a significant example of the species for the display quality and the size range. Also, note the sharp termination - very rare especially from Brazil, where most tend to be rather squarish in shape. This is perhaps the most important, in a sense of what is significant, of the specimens in this auction set. Ex Tom Campbell collection, purchased in Brazil on travel. Valued $1500-2500.