{"id":191,"date":"2013-11-10T20:35:44","date_gmt":"2013-11-10T20:35:44","guid":{"rendered":"http:\/\/nevadacassidysturquoise.com\/blog\/?page_id=191"},"modified":"2020-09-29T13:49:34","modified_gmt":"2020-09-29T13:49:34","slug":"1987-gemology-control-stone","status":"publish","type":"page","link":"http:\/\/nevadacassidysturquoise.com\/blog\/1987-gemology-control-stone\/","title":{"rendered":"1987 Gemology : Control Stone"},"content":{"rendered":"<div id=\"stcpDiv\">\n<div align=\"right\"><a> Go back <\/a><\/div>\n<table width=\"600\" border=\"0\" cellpadding=\"4\">\n<tbody>\n<tr>\n<td align=\"left\">\n<h3>The Control Stone:<\/h3>\n<p>The material we used in the 1987 gemology has both green and blue colors, this type of turquoise was a common find in the 1980&#8217;s. This turquoise was a vein nugget in the mid-grade range of Stone Mountain Turquoise. It had some translucence on the green edges and was at least 6 mohs in hardness. We made a <b>relief specimen<\/b> shaped like Nevada out of the remaining material from the control stone, and it is the Nevada Cassidys logo. Here is a close up of the same type of material:<\/p>\n<div><img decoding=\"async\" alt=\"The Control Stone example\" data-src=\"http:\/\/www.nevadacassidysturquoise.com\/blog\/wp-content\/uploads\/2020\/09\/gemology_material.jpg\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" \/><noscript><img decoding=\"async\" alt=\"The Control Stone example\" src=\"http:\/\/www.nevadacassidysturquoise.com\/blog\/wp-content\/uploads\/2020\/09\/gemology_material.jpg\" \/><\/noscript><\/div>\n<p><b>Allan E. Lombardo Gemology &#8211; <a href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0489\/4425\/1033\/files\/gemology_one.jpg?v=1601240909\" target=\"new\" rel=\"noopener noreferrer\">Page 1<\/a> &#8211; <a href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0489\/4425\/1033\/files\/gemology_two.jpg?v=1601240911\" target=\"new\" rel=\"noopener noreferrer\">Page 2<\/a> &#8211; <a href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0489\/4425\/1033\/files\/gemology_three.jpg?v=1601240910\" target=\"new\" rel=\"noopener noreferrer\">Page 3<\/a><\/b><\/td>\n<\/tr>\n<tr>\n<td valign=\"bottom\"><small>* <i>Relief Specimen<\/i> = A stone specimen that has been fully polished by a hand drill without a vice, such as a Foredom drill, while keeping the integrity of the natural shape of the stone. We use diamond bits for this process.<\/small><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Go back The Control Stone: The material we used in the 1987 gemology has both green and blue colors, this type of turquoise was a common find in the 1980&#8217;s. This turquoise was a vein nugget in the mid-grade range of Stone Mountain Turquoise. It had some translucence on the green edges and was at [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4089,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"categories":[375],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>1987 Gemology : Control Stone | The official Nevada Cassidys blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/nevadacassidysturquoise.com\/blog\/1987-gemology-control-stone\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1987 Gemology : Control Stone | The official Nevada Cassidys blog\" \/>\n<meta property=\"og:description\" content=\"Go back The Control Stone: The material we used in the 1987 gemology has both green and blue colors, this type of turquoise was a common find in the 1980&#8217;s. 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