{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Beneficiation studies of columbium-tantalum-bearing minerals in alluvial black-sand deposits","author_name":"John E. Shelton","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3HI/bigB003HIXOQE.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003HIXOQE.html\">Beneficiation studies of columbium-tantalum-bearing minerals in alluvial black-sand deposits</a>","width":400,"height":300}