Willow Creek Jasper is one of the five fine jaspers available in the market today. This jasper (mined NW of Boise, Idaho) actually forms as the centers of giant thundereggs, some as large as 10 feet in diameter. Willow Creek Jasper is know for its subtle pastel colors, streamer patterns, and occasional egg patterns. Contact us for information on how to receive a memo selection of these fine cabochons.