Kayan gilashin suna tare da dukkanin tsarin ci gaban wayewar ɗan adam. Gilashin iri-iri ana wadatar da su akai-akai kuma ana amfani da su sosai, musamman kayan gilashi na musamman, waɗanda ke taka muhimmiyar rawa da aikace-aikace ta fuskar gani, lantarki, maganadisu, injina, ilimin halitta, sinadarai da ayyukan thermal.
Muna mayar da hankali kan fadada iyakokin aikace-aikacen gilashin quartz da sauran tabarau na musamman. Mun yi bincike mai yawa, ci gaba da gwaje-gwaje a cikin kayan, fasaha da wasan kwaikwayo, kuma muna da kyakkyawar fahimtar halaye da aikace-aikacen aikace-aikacen kayan gilashi daban-daban don samar da abokan ciniki tare da mafita mai kyau.