Gems and ornamental minerals – jasper, amethyst, quartz geodes, nodules of pink celestite from Tuarkyr, agate from the Big Balhan Mountains banded marble onyx, which combines translucent and opaque bands, from the caves of Koytendag and Kaylyu, zebra-shaped dolomite from the Kopetdag Mountains, travertine from Gaurdak and chalcedony from Tuarkyr can be found in Turkmenistan. Many beautiful and rare samples “settled down” in the geological collections of training and research centres, nature museums of Turkmenistan and the CIS countries and private collections around the world.