Articles | Volume 34, issue 6
Eur. J. Mineral., 34, 539–547, 2022
https://doi.org/10.5194/ejm-34-539-2022
Eur. J. Mineral., 34, 539–547, 2022
https://doi.org/10.5194/ejm-34-539-2022
Research article
09 Nov 2022
Research article | 09 Nov 2022

Corresponding relationship between characteristic birefringence, strain, and impurities in Zimbabwean mixed-habit diamonds revealed by mapping techniques

Chengyang Sun et al.

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Short summary
It was determined that growth bands showing the straight birefringence in octahedral sectors and the enrichment of graphite inclusions in cuboid sectors of Zimbabwean mixed-habit diamonds may both be due to the fluctuation of temperature during crystallization, and they displayed positive anomalies of plastic deformation, residual stress, nitrogen concentration, and VN3H defects. This conclusion clearly revealed the correlation between birefringence and spectroscopic properties of diamonds.