Ferberite

$700.00

$40.00 shipping
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A heavy, long metallic black blade of Ferberite sprinkled with occasional etched, octahedral crystals of pale lavender Fluorite, from the Kara-Oba tungsten deposit in the Betpakdala Desert, Karagandy Province, Kazakhstan. Ferberite is the iron-rich end member of the Ferberite- H'bnerite series, what used to be named 'Wolframite'. The Ferberite forms a single vertically striated crystal with a metallic silky lustre and shows partial terminations across its apex. A most pleasing specimen.