Captivating Cabochons: Silver Willow Creek Jasper Jewelry with Smooth, Polished Gems The word Willow Creek Jasper is derived from the Willow Creek area in Idaho, USA. Occurrence of this gemstone is found all over the world in sedimentary and metamorphic rocks. The word jasper is an ancient Greek word. In the archaic era this stone was used as a meditational and ornamental stone. This stone is highly valued for its jewelry making as it was believed that wearing a willow creek jasper jewelry provides clarity, patience, and emotional stability.