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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 1
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Research Article
Spectroscopic Characteristics and Color Origin of Red Tourmaline from Brazil
Figure 1
Samples of tourmaline crystal. (a) Faceted stone. (b) Powder. (c) Sheet. (d) Crystal blocks.
(a)
(b)
(c)
(d)