Topaz
specimen number:
2292166
location:
Hematita, Minas Gerais, Brazil
description: The Hematita deposit, situated near Antonio Dias in the state of Minas Gerais, Brazil, is a notable gemstone locality famous for the discovery of exceptional alexandrite and chrysoberyl specimens. Geologically, the deposit consists of gem-bearing pegmatites and associated alluvial gravels hosted within Precambrian metamorphic and granitic terranes, where localized geochemical conditions permitted the crystallization of fine color-change chrysoberyl within weathered pocket zones. Artisanal mining at the site began intensely in October 1986 following an accidental discovery by local prospectors, triggering a major gem rush that rapidly attracted thousands of miners to the area. The most intensive and productive extraction phase was relatively brief, largely winding down within a decade due to the shallow, geologically constrained nature of the primary mineralized zone, though intermittent small-scale salvage and localized artisanal operations have continued sporadically into the 2020s.
Pale blue the colorless gemmy crystallized topaz specimen. This is in very good condition from the front, the backside is cleaved as shown in the video. That is typical of these.
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Related by Mineral (Topaz):
Topaz — Brazil
Origin: Ouro Preto, Minas Gerais, Brazil
Number: (9530042)
Size: 7.0 x 2.0 x 1.5 cm (small-cabinet)
Topaz — Namibia
Origin: Klein Spitzkopje, Swakopmund, Erongo, Namibia
Number: (9771265)
Size: 3.4 x 2.5 x 1.9 cm (miniature)
Topaz — Germany
Origin: Schneckenstein, Saxony, Germany
Number: (9302012)
Size: 4.5 x 3.5 x 2.0 cm (miniature)

