Name (chemical formula) | Band wavenumber (cm−1) | Figures | References |
---|---|---|---|
Anatase (TiO2) | 140–6, 399, 516, 636–41 | 2, 3, 4, 7, S1, S2, S3, S4, S5 | [37] |
Amorphous carbon (C) | 1589–1616, 1357–79 | 2, 3, 4, 5, 6, 7, S1, S3, S4, S5, S6, S7 | [35] |
Bone hydroxyapatite (~ Ca10(PO4)6(OH)2) | 962 | 7, S5, S7 | [25] |
Calcium carbonate (CaCO3) | 1086 | S5 | [42] |
Feldspar | 107, 177, 265–8, 450–6, 475–8, 510–4, 650, 747–50, 812–3 | 5, S3 | [41] |
Goethite (α-FeO(OH)) | 93–5, 247–53, 299–309, 397–405, 480, 557–65, 649–61, 680–97 | 3, 6, 7, S1, S2, S4 | [33] |
Haematite (α-Fe2O3) | 220–8, 243–7, 290–9, 403–14, 493–501, 604–17, 649–61, 1312–29 | 2, 3, 5, 6, 7, S1, S3, S4, S5, S6 | [33] |
Maghemite (γ-Fe2O3) | 117, 197, 361, 497–501, 698–722, 1426 | 2, 3, 4, 5, 7 | [23] |
Manganese oxides | 146–52, 195–208, 393–405, 495–505, 572–83, 600–15, 622–3, 658–70 | 2, 3, 5, 6, S2, S3, S4, S5, S6 | [34] |
444, 501, 606, 654 | 4 | ||
203, 406, 501–7, 580–2, 643–9 | 4, S5 | ||
503, 561, 645 | S3 | ||
(Mixture manganese and iron oxides and oxyhydroxides) | 142, 197, 290, 385, 427, 487–92, 534, 593, 649, 726, 1208 | S1 | |
Quartz (SiO2) | 128–30, 206, 463–7 | 2, 3, 5, 7, | [36] |