gems, corundum, Burma.12, geology.11, Mogok, Mogok Metamorphic Belt, ruby, spinel

Sinkankas: Reviews previous accounts and studies, details on occurrences, the gem-bearing marble, detailed descriptions corundums, spinels, chondrodite, apatite, phlogopite, other associates in the marble, and discusses origin in the dolomitic marble of Burma as compared to corundum sources elsewhere not of this type; plate shows crystal forms & growth figs of corundum.