Paese di origine Brasile
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macle cyclique de Chrysoberyl (1,8 cm)
Carnaiba mining district, Brésil
6.6 cm x 4.1 cm x 1.6 cm
A classic specimen of the famous alexandrites from Carnaiba featuring a 1.8 cm "sixling" (more accurately a "trilling") twin with a deep blue-green color when strongly lit that is sitting on typical schist matrix. The "arms" are well-developed, and this is a complete and undamaged crystal. There is a secondary crystal on the piece as well, but it's a simple prism and not a twin. The piece only shows a very slight color change, from a blue-green to a purple-blue hue, but the change is there nonetheless. These are classics from Brazil.
Collezione : Curiosités minérales