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GeneralDark band aquamarine

13th Jan 2023 01:52 UTCJeremy Szekeres OP
Hi,
There is a dark blue band running parallel near the top of my aquamarine crystal. Unfortunately for some reason my camera doesn't pick it up, even though it is clearly visible. I thought it looked kind of cool and was just wondering if anyone knows what this is, how it forms, or anything like that. The specimen is from Namibia and thanks!
13th Jan 2023 07:19 UTCUwe Kolitsch Manager
Usually this is indicative of higher Fe contents.

13th Jan 2023 12:33 UTCJeremy Szekeres OP
I got a picture, the band is much more noticeable in person the camera flushes it out a bit
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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