Drought can rarely be a good thing.....

[bravowhiskey]

But at Lake Buchanan, Tx., scientists and others are drooling over the fact that a submerged hill, that consists of many mineral wonders, may come back to light.
Pull up Barringer Hill and read all about it. Discovered in 1887 and submerged in 1937 many known rareties existed here before the filling of Lake Buchanan. Rare Earth Pegmatite.....
Wikipedia has an interesting read as well as others.

HH,
BW

 

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[Cappy Z.]

Pegmatites are important because they often contain rare earth minerals and gemstones, such as aquamarine, tourmaline, topaz, fluorite, apatite and corundum, often along with tin and tungsten minerals, among others. For example, beautiful crystals of aquamarines and topaz can be found in pegmatites in the mountains of Colorado and Idaho.

Pegmatites are the primary source of lithium either as spodumene, lithiophyllite or usually from lepidolite (Li-mica). The majority of the world's beryllium is sourced from non-gem quality beryl within pegmatite. Tantalum, niobium, rare-earth elements are sourced from a few pegmatites worldwide, notably the Greenbushes Pegmatite. Bismuth, molybdenum and tin have been won from pegmatite, but this is not yet an important source of these metals.