Check the listing for details. QUARTZ with PYRITE on FLUORITE (Fluorescent!) - 586g - *El Hammam, Morocco*. Condition: New. Listed at 125.00 USD. A complex and fascinating piece! Many, many quartz (rock crystal as it's called abroad) crystals feature a coating of pyrite that has formed to line the crevices between each quartz crystal produces a very cool effect. Perhaps what I love best about this, though, is that it sits on a fluorite matrix that is clear and light green. This is super obvious under UV light when you turn the piece "upside down." I do not see this material available in the market often; from a discovery over a decade ago given the former owner bought it in April of 2013. PLEASE NOTE THE SIZE BEFORE BUYINGSize: 15.6 × 7.3 × 3.8 cmWeight: 586g Mining Location: El Hammam, MoroccoFluorescent? Yes!Formerly of the Colin Manlove collection, a Scottish literary critic who amassed a collection of over 1,000 minerals, of which I had the privilege of coming to own over 100.