Most people think of topaz as a transparent golden yellow gemstone. However, this gemstone is available in orange-yellow, red, honey-brown (dark sherry), light green, blue and pink. The name topaz is derived from the Greek word "to shine" and also implies "fire". Orange-red "Imperial" topaz and pink colors are rare and most valuable. The lore, magic and romance of topaz goes back many thousands of years. It holds the distinction of being the gemstone with the widest range of curative powers. The Greeks felt it gave them strength. In addition, it supposedly cooled tempers, restored sanity, cured asthma, relieved insomnia and even warded off sudden death. Topaz is said to make its wearer invisible in times of emergency. It proved the loyalty of associates by changing color in the presence of poison. As part of the normal fashion process, most brownish to sherry brown topaz are heated to produce a permanent pink color. Certain types of topaz are irradiated and heated to produce shades of blue. Avoid sharp blows, intense heat and strong light. Topaz is found mainly in Brazil, Nigeria and Sri Lanka.