Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...
Mining the moon for minerals could be worth billions, but astronomers warn it's bad news for science
Moon mining could become a multibillion-dollar industry ... according to the Edelgas Group. "That's a huge market, in principle, and something is coming along very fast," Martin Elvis, a senior ...
Visakhapatnam:The illegal search for gemstones has resumed in the Eastern ... These men were caught red-handed while mining for semi precious stones in Siganapalli under Koyyru mandal in ASR ...
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