Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that in ...

After closely inspecting massive diamonds, scientists suggest they not only have unusual sizes but also unusual origins. Slivers of embedded iron in these gems, surrounded by special gases, point to a ...

Now that awards season is upon us, it seems only appropriate that an exclusive exhibition of rare gems and jewelry should be on display at the Natural History Museum in Los Angeles. Inside a vaulted ...