Blue Chalcanthite on Matrix
Planet Mine, AZ, USA
Sunset to Sunrise at the Grand Canyon.
Rockyard Botryoidal Geode
Agate (FL Blue >SW)
Chalcedony (FL Green >SW)
Golden Cathedral, Utah
Budafok Sand through microscope. Some people just can’t accept summer vacation.
Sulphur Crystals On Matrix by cobalt123 on Flickr