Jasper is one of the birth stone listed for the Sun Sign of Virgo and is the mystical birthstone for the month October. Jasper is an opaque and ingrained variety of Chalcedony. Colors include red, brown, pink, yellow, green, grey/white and shades of blue and purple. It often contains organic material and mineral oxides which gives it interesting patterns, bands and colors. Many of these resemble landscapes with mountains and valley, thus the name of many well-known Jaspers. A wide variety of named Jaspers are found in the western areas of the United States;California, Oregon, Idaho, Utah, Wyoming and Washington.