Fluorite is one of the world's most popular minerals, and it comes in a veritable bouquet of brilliant colors. The range of common colors for fluorite start with the hallmark color purple, then blue, green, yellow, colorless, brown, pink, black and reddish orange, making it easy to see why fluorite has earned its reputation as "The Most Colorful Mineral in the World." Of course, fluorite is also well known and prized for its glassy luster, sharp crystals, interesting twinning, and variety of interesting crystal habits, from cubic to octahedral.
The Rogerley Mine, operated by a consortium of investors called UK Mining Adventures, has been producing beautiful, high quality specimens since they first began work in May, 1999. Since then, they have breached a number of significant pockets, including the Black Sheep, the Dodgy Bugger, the Birthday, the Rat Hole, and many more. In mid-summer of 2011, it has been reported that serious consideration was being given to closing the mine, as there were not any good new avenues for further development. What saved the day was Penny’s Pocket, named for Penny Williamson (Curator of Geology at the University of Wollongong in Australia), because she was present when the pocket was breached. Some very good specimens have emerged from this new pocket - and the best of these are very good indeed! The finest pieces have good to medium luster, the crystals are twinned and gemmy, and they display outstanding daylight fluorescence - considered the best ever found at the Rogerley. Especially noteworthy is that most of the crystals display distinct growth hillocks, which is fairly common with Rogerley Mine fluorite. What makes these pieces extra special is that, in spite of the growth hillocks, the surfaces of the crystals are both transparent and highly lustrous, which is usually not the case. This discovery apparently held back the mine closing, at least for the time being - especially since the pocket has not yet been completely excavated.
Also new from the Rogerley Mine is purple fluorite. This color fluorite is very unusual for this locality. It came out of the the Purple Pocket, which was opened in July, 2010. This fluorite fluoresces a bright, rich electric blue under long wave ultraviolet light, but is not visibly daylight fluorescent.
3.9" purple fluorite specimen from the Purple Pocket at the Rogerley Mine
Please click here to visit the Treasure Mountain Mining blue-green fluorite collection, where you can buy many fine Rogerley Mine specimens.