Fluorite: A Collector’s Favourite – by Rui Galopim de Carvalho (opent in een nieuw tabblad)
Fluorite is a well-known mineral that occurs in many colours, often zoned or banded, and commonly as transparent specimens. Euhedral, meaning well-formed, crystals with cubic or octahedral habit are very popular among mineral collectors, occurring notably in Afghanistan, Brazil, China, Namibia, Pakistan, the UK, the USA, and Vietnam, just to name a few.
Lees het volledige verhaal bij Gem Spectrum (opent in een nieuw tabblad)