Kobyashevite w/ Selenite Cluster

Vibrant teal blue Kobyashevite crystal clusters from Durango, Mexico. You have to check out the detail on these beauties! 

NOTE: There is a lot of discussion on these, and no definitive answers. These are considered a 'post mining' crystal because after the calcite (base crystal) is taken from the ground, somehow copper, gypsum (the clear sparkles or 'fur') and other minerals combine or form to cause the fuzzy blue appearance. Some people say this happens on its own, and some have suggested that miners may have figured out how to help the process along using a natural solution. We still think they are beautiful either way, and somewhat rare!

Locality: Ojuela Mine, Mapimí, Mapimí Municipality, Durango, Mexico
Dimension: 3in x 2in x 3in
Wight:223g