{"product_id":"9780228103622","title":"Minerals Encyclopedia : 700 Minerals, Gems and Rocks by Rupert Hochleitner","description":"Mineral collecting by amateur \"rockhounds\" has never been more  popular. Old quarries, road cuts, and exposed landscapes are being examined by new generations of minerals enthusiasts. Each needs a comprehensive guidebook with clear photographs and accurate data. This is it.   In a thick but handy format, more than 700 different minerals and rocks are grouped by colour (for ease of location in the book) - blue, red, yellow, brown, green, white and black crystals; brown and grey sedimentary rocks; and meteorites for anyone lucky enough to find one. Each has a picture - four to a page-opposite detailed but clear data: Chemical formula; Hardness; Colour; Density; Lustre; Cleavage; Fracture; Tenacity; Crystal form; Similar minerals and where they are likely to occur. And many will have a diagram of its crystal form-up to four, for fluorite, for example. The Minerals Encyclopedia is unusual for the number of minerals it covers: more than 700 in 444 pages, with a useful glossary, an introduction to mineral collecting, and printed front and back flaps that offer quick reference in the field, and a measuring rule on the back cover. This is a superior reference for rockhounds, geology students and outdoors people with an interest in what's under their feet.\u003cbr\u003eBinding: Paperback \/ softback","brand":"Gardners","offers":[{"title":"Default Title","offer_id":56227947118965,"sku":"9780228103622","price":24.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/7193\/3106\/files\/9780228103622.jpg?v=1762252625","url":"https:\/\/backstory.london\/products\/9780228103622","provider":"Backstory","version":"1.0","type":"link"}