corundum, Sri Lanka.12, gems

Sinkankas: Describes the rock groups, mineral occurrences, typical deposits, rocks of secondary origin, fossils, and recent sedimentary rocks of Ceylon, together with gems and gem mining, a list of gemstones, and the arrangement of the mineral gallery at the Colombo Museum. Not seen; some sources identify the original publication as Spolia Zeylanica, Vol. 3, Part 9, March 1905, pp. 50–66, and also record its inclusion in the Colombo Museum’s Guide to the Collections (1905).