Giant selenite crystals
Some of you may have seen these photos....they have been circulating via e-mail over the last few weeks.
Pretty amazing....probably the largest selenite (CaSO4·2H2O) crystals found, i'd imagine. Miners discovered them in Naica Mine, Chihuahua, Mexico. Note people for scale in photos.
3 comments:
Isn't Selenite SrSO4?
hmmm....all the online databases I checked simply say it is a variety of gypsum, which is the formula I listed above...Mindat.org says strontium sulfate is called 'celestine'
I stand corrected. See what happens you you avoid evaporites for 13 years?
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