Stable crystals of copper fluosilicate hexahydrate (CZFH) have been successfully grown. X-band (9 GHz) EPR spectral studies carried out at room and liquid nitrogen temperatures have revealed some new features of Jahn-Teller effect in CZFH.Uspješno smo pripremili stabilne kristale bakarnog fluor-silicij heksahidrata (CZFH). Načinili smo mjerenja EPR spektara u X-pojasu (9 GHz) na sobnoj temperaturi i temperaturi tekućeg dušika koja pokazuju neke nove odlike JahnTellerovog efekta u CZFH
