Four Treasures Reference Database
Record No. 4697
Durchsichtiger, blau-rot changierender korund aus Kolumbien
Transparent, blue-red changing corundum from Colombia
Journal Article
Bank, H., Schmetzer, K. and Maes, J. (1978) Durchsichtiger, blau-rot changierender korund aus Kolumbien. [Transparent, blue-red changing corundum from Colombia] Zeitschrift der Deutschen Gemmologischen Gesellschaft, Vol. 27, No. 2, pp. 102–103.
Sinkankas/Born No.: NIS/NIB | Language: In German | RWHL
corundum, Colombia.12, gems
Bank, Schmetzer, and Maes describe a transparent Colombian corundum exhibiting a blue-to-red color change under different illumination. The brief report concerns this unusual color-change corundum and its gemological characteristics, documenting Colombia as a source of such material.