Synthetic ruby crystal

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Found in articles

1891. Nassau, K. (October 1969). "'Reconstructed' or 'Geneva' ruby". Journal of Crystal Growth. 5 (5): 338–344. doi:10.1016/0022-0248(69)90035-9. Harris

Found in articles

روش ورنویل

1891. Nassau, K. (October 1969). "'Reconstructed' or 'Geneva' ruby". Journal of Crystal Growth. 5 (5): 338–344. doi:10.1016/0022-0248(69)90035-9. Harris