Excited screams filled the air as two of my sons jumped from the platform and plunged downward into the mine below. Within minutes, they dropped several hundred feet and had traveled over a half-mile ...

Crystallization is a transition from chaos to perfection; the evolution of the crystal industry has been less simple. Millions of years ago, liquid rock inside the Earth cooled and hardened, and this ...

The rare stones we buy may sometimes cite a country of origin, but not which particular mine they come from or how ethical or unethical its environmental and labour practices. Not once did I ask ...