832-125278 - Quartz sand, which is added to the water as an abrasive material for water jet technology, precise technology for cutting metal with a high pressure water jet, Waterjet company, Aarwangen, Switzerland, Europe
857-63904 - Kevin Jorgeson climbing "Fantasia" at Lover's Leap, a popular granite climbing destination near Lake Tahoe in California's Sierra Nevada mountains. The cliff is known for its distinct horizontal quartz dikes which make interesting climbing. This route is considered a risky mental test piece because of its lack of good cracks for protection. It was first climbed in 1973 by Royal Robbins and Ken Wilson.