{"title":"Cold War Gems","description":null,"products":[{"product_id":"er-nd-soviet-laser-garnet-facet-rough-orange-pink-color-change-yag-facet-rough","title":"Er-Nd Soviet Laser Garnet Facet Rough, Orange\/Pink Color Change USSR YAG","description":"\u003cp\u003eThese are facet rough of an unusual experimental laser garnet from the Soviet union, codoped with Erbium and (likely) neodymium.  The base color ranges from orange-pink to purple-pink, and they color change from more orange to more pink depending on the light source.\u003cbr\u003e\u003cbr\u003eThis is a new material for us from an old collection, a 40-year-old failed experimental laser garnet from the Soviet Union. It is clearly doped with Erbium, and like our modern pure Er:YAG it has a striking combination of orange and pink colors and a remarkable color change. Unlike pure Er:YAG it has a stronger pink component, suggesting the addition of another dopant like Nd, and the color is also somewhat lighter as well. Most of the material was grown via HDSM aka the 'boat method', though a few pieces were clearly czochralski pulled. From doing further reading we learned that the inventor of the HDSM method was a soviet scientist and was working on erbium yag laser material in the 80s. Codoping Nd and Er can produce a laser with a dual wavelength output as well, so that was likely the reason they grew it.  We even have a good guess as to why this material didn't make the cut--aside from the variable base color some larger pieces show noticeable color zoning which means the codopants were not evenly mixed, which is not great if you want to make a laser.\u003cbr\u003e\u003cbr\u003eOverall, it's a really cool material, and while I'm sure they were frustrated by the production problems their loss is our gain. This cuts amazing gems with a rich peachy-pink color-changing padparascha-like color. It also isn't one of those color changes that you might kind of see if you use a special flashlight or a lighter flame--the change is easily visible under real world lighting conditions and the stones look different throughout your daily routine.\u003cbr\u003e\u003cbr\u003eYAG in general is an ideal material for faceting, which a high hardness of 8.5, no cleavage, no problems with polishing and excellent optical properties with an RI of 1.82. It is considered one of the easiest materials to facet.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"1pc under 1g (crumb)","offer_id":49968871375136,"sku":"Rough_YAGErNd_Crumb","price":8.0,"currency_code":"USD","in_stock":true},{"title":"1-2g rough","offer_id":47772023816480,"sku":"Rough_YAGErNd_1","price":16.0,"currency_code":"USD","in_stock":true},{"title":"2-3g rough","offer_id":47772118384928,"sku":"Rough_YAGErNd_2","price":25.0,"currency_code":"USD","in_stock":true},{"title":"3-4g rough","offer_id":47772118417696,"sku":"Rough_YAGErNd_3","price":34.0,"currency_code":"USD","in_stock":true},{"title":"4-5g rough","offer_id":47772118450464,"sku":"Rough_YAGErNd_4","price":43.0,"currency_code":"USD","in_stock":true},{"title":"5-6g rough","offer_id":47772118483232,"sku":"Rough_YAGErNd_5","price":51.0,"currency_code":"USD","in_stock":true},{"title":"6-7g rough","offer_id":47772118516000,"sku":"Rough_YAGErNd_6","price":58.0,"currency_code":"USD","in_stock":true},{"title":"7-8g rough","offer_id":47772118548768,"sku":"Rough_YAGErNd_7","price":65.0,"currency_code":"USD","in_stock":true},{"title":"8-9g rough","offer_id":47772118581536,"sku":"Rough_YAGErNd_8","price":72.0,"currency_code":"USD","in_stock":true},{"title":"9-10g rough","offer_id":47772118614304,"sku":"Rough_YAGErNd_9","price":78.0,"currency_code":"USD","in_stock":true},{"title":"10-11g rough","offer_id":47772118647072,"sku":"Rough_YAGErNd_10","price":84.0,"currency_code":"USD","in_stock":true},{"title":"11-12g rough","offer_id":47772147613984,"sku":"Rough_YAGErNd_11","price":92.0,"currency_code":"USD","in_stock":true},{"title":"12-13g rough","offer_id":47772147646752,"sku":"Rough_YAGErNd_12","price":100.0,"currency_code":"USD","in_stock":true},{"title":"13-14g rough","offer_id":49968866132256,"sku":"Rough_YAGErNd_13","price":108.0,"currency_code":"USD","in_stock":true},{"title":"Individual Piece, 14.7×14.2×13.6mm, 11.58g","offer_id":51423369494816,"sku":"Rough_YAGErNd_00120260404","price":94.0,"currency_code":"USD","in_stock":true},{"title":"Individual Piece, 16.6×15.3×10.2mm, 10.99g","offer_id":51423369527584,"sku":"Piece, 16.6×15.3×10.2mm, 10.99g","price":89.0,"currency_code":"USD","in_stock":false},{"title":"Individual Piece, 13.8×13.2×13.2mm, 10.67g","offer_id":51423369560352,"sku":"Rough_YAGErNd_00320260404","price":86.0,"currency_code":"USD","in_stock":true},{"title":"Individual Piece, 17.1×15.6×13.3mm, 14.19g","offer_id":51423369593120,"sku":"Piece, 17.1×15.6×13.3mm, 14.19g","price":115.0,"currency_code":"USD","in_stock":false},{"title":"Individual Piece, 18.8×15.1×11.1mm, 13.37g","offer_id":51423369625888,"sku":"Rough_YAGErNd_00520260404","price":108.0,"currency_code":"USD","in_stock":true},{"title":"Individual Piece, 22.2×21.9×21.4mm, 42.01g","offer_id":51423369658656,"sku":"Rough_YAGErNd_00620260404","price":337.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/USSR_YAG.jpg?v=1775343416"},{"product_id":"star-wars-sdi-laser-ruby-loose-faceted-stones-czochralski-pulled-crystal","title":"SDI\/'Star Wars' Laser Ruby Loose Faceted Stones, Fancy Cuts","description":"\u003cp\u003eThese are lab created laser rubies grown for use in the Strategic Defense Initiative, aka 'Star Wars' program, in the 1980s.  Like all rubies they have a high hardness of 9, great brilliance and glow red under UV.\u003cbr\u003e\u003cbr\u003eThis is the most classic gem produced by science: laser ruby. While material of this color would be called 'pink sapphire' in a gemological context, in laser science all corundum doped with chromium is considered ruby (in contrast to pink laser sapphire which is doped with titanium). In a laser this material would be cut into a cylinder, charged up with photons from the sides and emit a beam of coherent light out of the end--in fact the very first laser was built with a ruby. As you would expect for this requires a very high standard of chemical purity and structural perfection--when energizing a crystal imperfections tend to heat up and explode. Czochralski pulling ensures that these stones have perfect crystal structure, high chemical purity and strong, even coloration, which coincidentally makes them exceptional for gem usage as well.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eBack in the 80s the US government spun up the SDI (Strategic Defense Initiative) program, the idea being to create powerful defenses against nuclear weapons using whatever wacky sci-fi ideas people could come up with--because of this the media often called it the 'Star Wars' program. One idea was to make powerful lasers that would shoot missiles right out of the sky en route, and because of that they grew a lot of laser ruby and stockpiled it for future use. When the SDI was finally wound down there was a lot of this stuff lying around which was surplused off and often made it into the hands of faceters. Unfortunately I missed out on all of that on account of being born that year, but we've been able to buy a few old collections that contained some of this material. We can't be 1000% certain of the provenance because it wasn't specifically labeled as government material but it was labeled as laser ruby and is from exactly the right time so I would call it 99% certain. \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThis material cuts super bright, neon pink stones with a ton of scintillation and super bright fluorescence which gives them an extra pop. They are great for any lover of science, fluorescence or the color pink!\u003cbr\u003e\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"1ct Square Cut 5.25mm","offer_id":50654687002912,"sku":"Gem_SWRuby_Sq_5.25","price":40.0,"currency_code":"USD","in_stock":false},{"title":"3.10ct Long Octagon Cut","offer_id":50654696669472,"sku":"Gem_SWRuby_028","price":124.0,"currency_code":"USD","in_stock":false},{"title":"3.54ct Oval Cut","offer_id":50654687953184,"sku":"Gem_SWRuby_029","price":140.0,"currency_code":"USD","in_stock":false},{"title":"3.7ct Cushion Cut","offer_id":50654687985952,"sku":"Gem_SWRuby_030","price":148.0,"currency_code":"USD","in_stock":false},{"title":"3.92ct Square Cut","offer_id":49698283880736,"sku":"Gem_SWRuby_001","price":156.0,"currency_code":"USD","in_stock":false},{"title":"4.06ct Fancy Diamond Shape Cut","offer_id":50654692114720,"sku":"Gem_SWRuby_031","price":161.0,"currency_code":"USD","in_stock":false},{"title":"4.39ct Rectangle 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13.2mm","offer_id":48917196734752,"sku":"Gem_SWRuby_027","price":636.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/IMG_0070_cca44344-aaee-4fb2-aeb0-11736e16d7fd.jpg?v=1716500493"},{"product_id":"giant-soviet-laser-ruby-crystal-wand-or-sword-blade","title":"Giant Soviet Laser(?) Ruby Crystal, Wand or Sword Blade","description":"\u003cp\u003eThis is a bizarre crystal of ruby from an old collection of Soviet material.  I am not even sure of the growth method--it is very long and slender, and flattened, which makes me think it may have been grown by floating zone, though some sort of ultra-refined flame fusion could be possible too.  The unusual growth and lower concentration pure chromium doping makes me think it is likely laser ruby, meant to be grown for one long rod.  The base has some opaque layering which might be why it was left as a crystal.  It is absolutely stunning, with a natural handle that makes it nice to hold.  It also glows in sunlight thanks to its vivid fluorescence.  I have always wanted one of these old Soviet crystals and I'll be sad when it eventually goes.\u003c\/p\u003e\n\u003cp\u003eThe crystal measure 34cm in length and weighs in at 340g.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Default Title","offer_id":49657531236640,"sku":"Eric_NeonRuby","price":5000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/20241205_111314.jpg?v=1733415655"},{"product_id":"giant-soviet-laser-ruby-rod-polished","title":"Giant Soviet Laser Ruby Rod, Polished","description":"\u003cp\u003eThis is a super classic ruby laser rod, old surplus left over from the Soviet Union.  It's basically the opposite answer to the Star Wars laser rubies, with a similar pink-red tint.  This would have likely been grown by the Czochralski method--it is polished all around and only has minor chipping on the end faces.  Overall it's an incredible piece and would also make amazing rough for gemstones if you could bear to cut it up.\u003c\/p\u003e\n\u003cp\u003eThe rod measures 15.8mm in diameter and 24cm in length and weighs in at 189g.\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"Default Title","offer_id":49827193684256,"sku":"Soviet_rubyrod","price":1900.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6794\/0384\/files\/20250122-171650.jpg?v=1737584393"},{"product_id":"soviet-pink-and-bicolor-ruby-loose-faceted-stones-old-laser-stock","title":"Soviet Pink and Bicolor Ruby Loose Faceted Stones, Old Laser Stock","description":"\u003cp\u003eThese are lab created laser rubies grown in the Alexandrov lab in the Soviet Union back in the 1980s.\u003c\/p\u003e\n\u003cp\u003eThese are pink rubies grown in the Alexandrov lab, likely meant for use in lasers though we can't be 100% sure since they did sometimes grow jewelry material as well.  Their color indicates the right dopant level for laser usage, while higher chromium concentrations are usually favored for jewelry applications.  Some stones also have colorless zones, a technique developed specifically for specialty laser rods.\u003c\/p\u003e\n\u003cp\u003eWhether these were laser material or just grown to laser spec by a laser lab they cut amazing gems, with a vivid red-pink similar to that seen in classic 'Star Wars' laser rubies from the US side of the cold war.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThis material cuts super bright, neon pink stones with a ton of scintillation and super bright fluorescence which gives them an extra pop. They are great for any lover of science, history or the color pink!\u003cbr\u003e\u003c\/p\u003e","brand":"Turtle's Hoard","offers":[{"title":"12.4ct Pixel Cut","offer_id":50804818280736,"sku":"Gem_SovRuby_001","price":186.0,"currency_code":"USD","in_stock":false},{"title":"12.6ct Pixel Cut","offer_id":50804851343648,"sku":"Gem_SovRuby_002","price":189.0,"currency_code":"USD","in_stock":false},{"title":"12.9ct Pixel Cut","offer_id":50804851376416,"sku":"Gem_SovRuby_003","price":193.0,"currency_code":"USD","in_stock":false},{"title":"13.6ct Pixel Cut","offer_id":50804851409184,"sku":"Gem_SovRuby_004","price":204.0,"currency_code":"USD","in_stock":false},{"title":"13.75ct Pixel Cut","offer_id":50804851441952,"sku":"Gem_SovRuby_005","price":206.0,"currency_code":"USD","in_stock":false},{"title":"14.4ct Pixel Cut","offer_id":50804851474720,"sku":"Gem_SovRuby_006","price":216.0,"currency_code":"USD","in_stock":false},{"title":"15ct Pixel 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