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Journal of Spectroscopy
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Journal of Spectroscopy
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2022
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Article
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Fig 3
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Research Article
Characterization of Natural Precious Opal Using Modern Spectroscopic Techniques in Ethiopia: The Case from Delanta, South Wollo
Figure 3
SEM images of opal samples: (a) Ds-1, (b) Ds-2, (c) Ds-3, (d) Ds-4, (e) Ds-5, and (f) Ds-6.