Topas is a municipality located in the province of Salamanca, Castile and León, Spain. According to the 2004 census (INE), the municipality has a population of 695 inhabitants.Category:Municipalities in the Province of Salamanca Category:Populated places in the Province of SalamancaTopas is also the name of software package used in the analysis of powder diffraction data - see the topas wiki for more information.