Topaz-imperial topaz1b



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English: Topaz
Locality: Ouro Preto, Minas Gerais, Southeast Region, Brazil (Locality at mindat.org)
Size: miniature, 4.6 x 2 x 1.3 cm
Topaz (var. imperial)
This is a superb example of classic topaz from the Ouro Preto region, referred to in the gem trade as "imperial topaz" for its orange color and brilliant lustre. The specimen is a complete crystal with great brightness and intensity, truly fine by any standard...and it is also doubly terminated. Note the stark difference, too, in the termination styles. You don’t see that very often. There are larger examples, but they reside primarily in the mine owner's company collection, sometimes showed on exhibit. This piece is of an older style aside from the dating via the label with it, and came out, thus, before the current near-monopoly on the region's imperial topaz production by the current owner. It was obtained in Brazil by collector/dealer Richard Kosnar on a trip in the 1970s, and is numbered #37 on a very old collection label that is preserved with the specimen (easily dated as it has his first wife's name on it). From Kosnar, it went to the well-known collection of former Dallas native Rick Rolater, who sold his collection (primarily to other local collectors in a famous free-for-all at his home) when founding the Discovery Stores in the 1980s. Wally Mann, also of Dallas, has owned it since.
Deutsch: Topas
Fundort: Ouro Preto, Minas Gerais, Southeast Region, Brasilien (Fundort bei mindat.org)
Größe: 4.6 x 2 x 1.3 cm
Date before March 2010(2010-03)
Source Image: http://www.irocks.com/db_pics/new09mix/imperial_topaz1b.jpg, Description: http://www.mindat.org/photo-271359.html
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