Toothpaste. A Frosty. Aluminum foil. Ceramic toilets. Eyeshadow. There’s something these items have in common — they contain minerals. Showing people how much they rely on rocks and minerals in day-to ...

One Colorado hotel is offering guests access to a complimentary “crystal concierge,” from whom they can check in and check out healing stones, many of them locally mined. They can help guests choose ...