Imperial TOPAZ
Al₂SiO₄(F,OH)₂
Ouro Preto, Minas Gerais, Brazil

The finest imperial topaz gems, such as this, are of intense reddish-orange color. These are the most sought-after and highly valued of the topaz gems. The most important deposits are in the area surrounding the Brazilian colonial city of Ouro Preto.

Size / Weight: 22x16x9 mm / 30.0 carats

Acquired: 1988 donation, John Jago Trelawney Collection.

Disposition: On display in the Hixon Gem Vault exhibit.

Catalog Number: 33345