{"product_id":"unbranded-dichroscope-c-2012","title":"Unbranded dichroscope (c.2012)","description":"\u003cp class=\"p1\"\u003eThis compact, unbranded calcite dichroscope is a contemporary gemological instrument manufactured within the last decade, first entering the commercial market during a notable industry shift between 2012 and 2014. Measuring an ultra-portable 38mm in length and 13mm in diameter, its shrunken, \"stubby\" profile makes it one of the most pocket-friendly and lightweight field tools available to modern gemologists. Unlike classic, longer British or American lab instruments of the 20th century, this modern version was engineered specifically for convenient travel. This historical era marked the 2012–2014 Shift: Multi-axis CNC (Computer Numerical Control) lathe machining became cheap enough to be used for low-cost, mass-produced hobbyist and field tools. This allowed factories to introduce single-block anodized aluminum chassis with precise, high-density diamond knurling (the textured grip bands) directly into the design layout.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIn terms of optical construction, the durable, matte-black anodized shell houses a hand-fitted, natural calcite prism (Iceland spar). This highly birefringent crystal is precisely aligned to split incoming light into two distinct polarized paths, projecting side-by-side rectangular windows through the viewing eyepiece to allow for the immediate comparison of pleochroic colors. By optimizing the housing to fit a smaller, cost-effective block of high-performing calcite, this instrument successfully delivers professional-grade optical accuracy within a highly rugged, utilitarian, and budget-friendly design.\u003c\/p\u003e","brand":"Gems.studio","offers":[{"title":"Default Title","offer_id":53152662913344,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0397\/2672\/files\/Unknown_Dichrosocope1.avif?v=1789410511","url":"https:\/\/gems.studio\/products\/unbranded-dichroscope-c-2012","provider":"Gems.studio","version":"1.0","type":"link"}