TEKBAS CANDAR*, M., and F. ISLER†. “Geochemical Properties of Fire Opal Occurences in KüTahya (SW Turkey)”. Asian Journal of Chemistry 22, no. 1 (January 24, 2024): 815–817. Accessed January 8, 2025. https://asianpubs.org/index.php/ajchem/article/view/16713.