PolyU Library
Journal Call no.HD9747.A8J48
Article TitleHeated topaz in unusual colour.
Is Part OfJewellery news Asia ; no.148, Dec 1996, p.76-77, illus.
AbstractSales of heat treated topaz in shades of blue and green as well as red and pink were launched in Asia at the September Hong Kong Jewelry & Watch Fair 96, by Brazil International Gems Ltd in Hong Kong.