A gorgeous specimen of a surprise find from just before Tucson of around 2016 if i recall rightly, these "Kobyashevite" crystals were somehow chemically created down at the mine, by a technique I am still unfamiliar with but nevertheless am convinced that they are indeed, synthetic. Sadly, these were sold aggressively on the market as a natural find by bad players near the source and filtered out to many honest and well-meaning dealers later over time. This piece, from the Gary Weaver collection, is a cautionary tale in Mexican fakes - and still a pretty, if synthetic, part of an Ojuela suite..