Villagers in Ethiopia uncover rare black opal nearly 10,000 ft high, reshaping the global gem market with vibrant stones.
Artist's reconstruction of Fostoria dhimbangunmal, a newly described iguanodontian dinosaur. James Kuether. Three decades ago, opal miner Bob Foster was getting frustrated while digging around in his ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results