{"product_id":"the-specific-gravity-of-gemstones-a-collection-of-historical-articles-on-gemstone-testing-9781447420491","title":"The Specific Gravity of Gemstones - A Collection of Historical Articles on Gemstone Testing","description":"\u003cp\u003e\u003cstrong\u003eStep into the scientific world of gemstone identification with this fascinating collection of historical gemological articles, carefully curated from early 20th-century and earlier sources for today's readers.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eFocusing on one of the most essential physical tests in gemology, specific gravity measurement, the volume explains the classic methods used to determine a gemstone's density relative to water, illustrating how this property can help distinguish between different gem materials and support broader gemstone testing.\u003c\/p\u003e \u003cp\u003eContents include: \u003c\/p\u003e \u003cul\u003e \u003cli\u003eGem Testing by B. W. Anderson\u003c\/li\u003e \u003cli\u003eGemstones by G. F. Herbert\u003c\/li\u003e \u003cli\u003eA Text Book of Mineralogy by Edward Salisbury Dana\u003c\/li\u003e \u003cli\u003eGems and Gem Material by Edward Henry Kraus\u003c\/li\u003e \u003cli\u003ePractical Gemmology by Robert Webster\u003c\/li\u003e \u003cli\u003eGem Stones and Their Distinctive Characters by G. F. Herbert Smith\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eWith original texts and expert context preserved in an accessible modern edition, this book is a valuable and engaging reference for gem enthusiasts, students, collectors and anyone curious about the foundational techniques of gemstone testing and identification.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Various\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Oswald Press\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 07\/15\/2011\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 66\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.21lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 8.50h x 5.50w x 0.16d\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9781447420491","brand":"Oswald Press","offers":[{"title":"Paperback","offer_id":45086233821299,"sku":"9781447420491","price":43.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9255\/0515\/files\/img_58878ce3-c7fc-4bc3-a073-99ed0086c1d8.jpg?v=1781012957","url":"https:\/\/bookstorenmore.com\/products\/the-specific-gravity-of-gemstones-a-collection-of-historical-articles-on-gemstone-testing-9781447420491","provider":"Bookstore N More","version":"1.0","type":"link"}