Jun 232015
The U. K. Guardian – the former Manchester Guardian – reminds us of what impresses ordinary people about crystals. Ten Crystals with Magic Powers is a David Letterman-type list, starting with fluorite’s colors, giant selenite crystals, Viking navigation using Iceland spar, quartz watches, semi-conduction with galena, superhard carbon crystals Tristan Ferroir and company found in a meteorite, radioactive fluorescing autunite, getting sugar to sparkle, biophotonic crystals, and volcanic ice crystals. Useful list to have around the next time you talk to a bunch of high school students about what you do all day – especially autunite, which is almost perfect for the next Marvel movie.