Chalmers Topaz

The Chalmer's Topaz is a topaz gem weighing 5,899.5-carats located in Chicago, Illinois' Grainger Hall of Gems, in the Field Museum of Natural History. It was named for former Field Museum trustee William J. Chalmers and his wife Joan Chalmers, who established a fund used to purchase gemstones for the Field Museum collections.[1] The Chalmers Topaz is one of the largest cut topaz gems in the world.[2]

The topaz in the Field Museum (2009)

See also

References
  1. Olsen, Edward John (1991). Gems : a companion to the Grainger Hall of Gems. Chicago [Ill.]: Field Museum of Natural History. p. 2. ISBN 9780914868132.
  2. Hall of Gems, Gallery of Gems, Topaz. Retrieved 8/1/2019.
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