Four Treasures Reference Database
Record No. 1555
A new type of twinning in natural sapphire
Journal Article
Schmetzer, K. (1988) A new type of twinning in natural sapphire. Journal of Gemmology, Vol. 21, No.̨ 4, October, pp. 218–220.
ISBN/ISSN: 221252 | RWHL*
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Twinning, Natural Sapphire, corundum, inclusions.5, chemistry.2, gems