Garnet as gemstones. The gemstone varieties occur in shades of green, red, yellow, and orange. In the US it is known as the birthstone for January. It is the state mineral of Connecticut, New York's gemstone, and star garnet (garnet with rutile asterisms) is the state gemstone of Idaho. Garnet sand is a good abrasive, and a common replacement for silica sand in sand blasting. Alluvial garnet grains which are rounder are more suitable for such blasting treatments. Mixed with very high pressure water, garnet is used to cut steel and other materials in water jets. For water jet cutting, garnet
Garnet Canyon Garnet Canyon Garnet Canyon is located in Grand Teton National Park in the U.S. state of Wyoming. The canyon was formed by retreating glaciers which reached their last glacial maximum around 15,000 years ago. While Garnet Canyon is a less popular destination for recreational hikers than nearby Cascade Canyon or Death Canyon, it is an important approach to many significant and popular mountaineering climbs including routes found on Grand Teton, Middle Teton, South Teton and Disappointment Peak. The trailhead for Garnet Canyon is found at Lupine Meadows, and the canyon itself is reached after several miles of hiking through forest