Fluorite (2 generations - 2-sided specimen) (ex Al Kidwell Collection)

Item Description

One of the most prolific mineral localities in Mexico is the prodigious Naica Mine, which is not only home to the most exemplary Gypsum crystals ever discovered (the famous "Cave of Swords") but it has produced superb examples of many other mineral species, including some truly iconic Fluorites. This is a really cool old-time Fluorite specimen from this famous locality featuring beautiful, very pale green (nearly colorless), glassy/gemmy, cubic crystals of Fluorite on one side, and when you flip the piece over, you can see a group of darker green colored Fluorite crystals featuring a combination of cubic and dodecahedral habits. There is a thin layer of metallic silvery-grey Galena separating the two generations of Fluorite on each side of the piece. Check out the video for this one to get the best idea of what it looks like in person. A great piece for any fan of worldwide Fluorites or minerals from Mexico. From the worldwide mineral collection of Albert Lewis Kidwell (January 1, 1919 - August 16, 2008). Al was a well-known mineral collector and research geologist with Carter Oil Company and later Exxon Oil Company in Houston, Texas. The phosphate species Kidwellite was named in his honor in 1974 ( https://www.mindat.org/photo-326405.html ).