world's largest emerald (size of a watermelon) Is this thing real?Probably not, It was dyed, so we'll never know what percentage is emerald, and what percentage is white beryl. It failed to sell at auction.
World's largest Quartz crystal cluster on display in Crystal Gallery, Swakopmund, Namibia. This is the world's largest quartz cluster, discovered in 1985 at the bottom of a 45 meter deep cave in the Otjua mine near Karibib in Namibia.
Bright Dioptase crystals that appear to be stalactitic in form but are actually overgrown on needle-like crystals of an unidentified brown mineral. The specimen is columnar in form with bright sparkly crystals on all sides