Mannardite as the main vanadium-hosting mineral in black shale-hosted vanadium deposits, South China

Abstract

Black shale-hosted vanadium (V) deposits accounts for about 80% vanadium resource in the world, but only less than 2% vanadium in the black shale can be extracted mainly due to insufficient recognition on the occurrence mode of vanadium. It is commonly agreed that most vanadium in the black shale is hosted in clay minerals and organic matters, but it is not clear how the other parts of vanadium exist and whether there is vanadium mineral, which limits the understanding of metallogenic mechanism of black shale-hosted vanadium This is the peer-reviewed, final accepted version for American Mineralogist, published by the Mineralogical Society of America.The published version is subject to change. Cite as Authors (Year) Title. American Mineralogist, in press.