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.
Quartz crystals with blue needles of Dumortierite inside. The locality, is western Bahia, near Vaca Morta Quarry, a remote and hard to reach area near the border with Tocantins state. - Photo: Jeff ScovilQuartz with Dumortierite inclusions