抄録
Gemmological properties and keys for identification of new natural gemstones, which have been discovered or appeared in the gem market from 1945 are described briefly, together with their histories of discovery. The minerals described are brazilianite, taaffeite, sinhalite, amblygonite, greened amethyst, ekanite, painite, tugtupite, trapiche emerald, jade-albite, grossular garnet, blue zoisite, red tourmaline, jeremejevite, transparent sodalite, bixbite, treated blue beryl, herderite, prosopite, ceruleite, charoite, transparent rhodochrosite, palygorskite, taprobanite, ammolite and sugilite.
