{"product_id":"dichroscope","title":"Dichroscope","description":"\u003cp class=\"MsoNormal\"\u003eA dichroscope is a pocket-sized optical instrument used in gemmology to detect pleochroism—the phenomenon where a doubly-refractive gemstone can display different colours when viewed from different angles. It assists gemmologists to identify natural gems, spot synthetics, and distinguish between look-alike stones.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe dichroscope splits the light emitted from a gemstone into two separate, plane-polarized rays. When you look through the eyepiece, you see two small squares positioned side-by-side. By comparing the colours of these two squares, you can quickly assess any pleochoism present, and use this to help identify a stone.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e(*Whilst many sources claim you can use a dichroscope to separate doubly and singly refractive stones, this is not always true...but this is a much longer explanation. If you want to learn why, we can teach you in our courses 😉!)\u003c\/p\u003e","brand":"Sachi","offers":[{"title":"Default Title","offer_id":57962618683766,"sku":"GIN004","price":44.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0412\/6795\/3821\/files\/20260527_125624.jpg?v=1779891657","url":"https:\/\/gemmologyrocks.com\/products\/dichroscope","provider":"Gemmology Rocks","version":"1.0","type":"link"}