Is this a crystal or art? Bismuth - If you want one of the rarest bismuth crystals in the world, here it is!!! It was amazing seeing this creation come forth from the molten bismuth. Simply massive in size at 566 grams, and 4 by 4 by
Top Ten Signs You Might Be A Geologist: #8 You have ever found yourself trying to explain to airport security that a rock hammer isn't really a weapon. Join us for more science fun at Dig Into Geology! http://www.minimegeology.com/home/mgeo/smartlist_11/dig_into_geology.html
Rhodochrosite is a manganese carbonate mineral. Pure rhodochrosite is rather rare. In its pure form, it is typically pale pink or rose-red, but the colour of more prevalent impure specimens can vary from shades of pink, deep red, orange to pale brown.