admin Administrator Staff member Nov 11, 2019 12,621 467 0 Visit site Oct 22, 2023 #1 Very few gems can withstand the intense pressure of Earth's mantle, but some require it to crystallize. What's the deepest-occurring gemstone on Earth? : Read more
Very few gems can withstand the intense pressure of Earth's mantle, but some require it to crystallize. What's the deepest-occurring gemstone on Earth? : Read more