{"product_id":"kashinite-with-irarsite-laurite-rutheniridosmine-and-isoferroplatinum","title":"KASHINITE with IRARSITE,  LAURITE  RUTHENIRIDOSMINE and ISOFERROPLATINUM","description":"Sometimes rare species are extremely small, and here is a classic example. A single, 1 mm wide grain is mounted in a resin polished block, but this grain contains five extremely rare species - Kashinite, Irarsite, Laurite, Rutheniridosmine and Isoferroplatinum. This style of polished mount requires a specialist reflected light microscope in order to study the grains and the reflectance produced by these metallic minerals under plane polarized and cross polarized light. Often, even optical identification is a challenge and the carbon coating on the edge of this polished block shows that it has been studied chemically using a Scanning Electron Microscope. This is not our usual type of specimen, but included due to its rarity. Examples of these rare species from this occurrence are few and far between. The overall measurements provided indicate the size of the polished block.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46584887476399,"sku":"CC43674","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC43674.png?v=1771863392","url":"https:\/\/crystalclassics.com\/products\/kashinite-with-irarsite-laurite-rutheniridosmine-and-isoferroplatinum","provider":"Crystal Classics","version":"1.0","type":"link"}