Four Treasures Reference Database
Record No. 4840
Gemstone prospects in central Nigeria
Journal Article
Kanis, J. and Harding, R.R. (1990) Gemstone prospects in central Nigeria. Journal of Gemmology, Vol. 22, No. 4, pp. 195–202.
ISBN/ISSN: 221252 | RWHL*
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corundum, sapphire, Nigeria.12, inclusions.5, geology.11, gems