{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Elements of Optical Mineralogy: An Introduction to Microscopic Petrography, with Description of All Minerals Whose Optical Elements Are Known and ... for Their Determination Microscopically","author_name":"Newton Horace Winchell, Alexander Newton Winchell","thumbnail_url":"https://www.ebooknetworking.net/books/114/611/big1146113587.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1146113587.html\">Elements of Optical Mineralogy: An Introduction to Microscopic Petrography, with Description of All Minerals Whose Optical Elements Are Known and ... for Their Determination Microscopically</a>","width":400,"height":300}