Sample | Polarized microscopy | Optical microscopy of cross-sections | Micro-Raman spectroscopy | ||
---|---|---|---|---|---|
No and | color of layers | Pigments identified | Bands used for identification (cm–1) | ||
1 | Celadonite | 3 | Plaster | Calcite | 153, 278, 711, 1085 |
Glauconite | Black | Amorphous carbon | 1315br (broad), 1591br | ||
Calcite | Calcite | 151, 278, 722, 1086 | |||
Quartz | Green | Celadonite/glauconite | 168sh (shoulder), 198, 281, 345sh, 379, 393, 433, 537, 683 | ||
2 | Lazurite | 3 | Plaster | Calcite | 152, 279, 711, 1085 |
Calcite | Black | Amorphous carbon | 1313br, 1585br | ||
Quartz | Calcite | 155, 279, 1087 | |||
Blue | Lazurite | 261, 283sh, 546, 598, 816, 1094, 1359, 1640, 1901, 2186 | |||
3 | Yellow ochre | – | – | ||
Calcite | |||||
5 | Yellow ochre | 2 | Plaster | Calcite | 154, 279, 711, 1085 |
Calcite | Yellow | Yellow ochre (goethite) | 211, 301, 391, 475sh, 543 | ||
Quartz | Massicot | 143 | |||
Calcite | 280, 1085 | ||||
6 | Yellow ochre | 4 | Plaster | Calcite | 151, 275, 710, 1084 |
Red ochre | Gypsum | 415, 492, 618, 669, 1006, 1132 | |||
Glauconite | Green | Celadonite/glauconite | 198, 278, 377, 541, 681 | ||
Calcite | Yellow | Yellow ochre (goethite) | 291, 405 | ||
Calcite | 277, 1084 | ||||
Gypsum | 428, 607, 1006 | ||||
Titanium white (rutile) | 445, 607 | ||||
Red | Red ochre (hematite) | 224, 290, 408 | |||
Amorphous carbon | 1324br, 1597br | ||||
Calcite | 275sh, 1084 | ||||
Gypsum | 408, 496, 616, 665, 1006 | ||||
8 | Red ochre | – | – | ||
Calcite | |||||
Quartz | |||||
9 | Calcite | – | – | ||
Coal | |||||
10 | Red ochre | 2 | Plaster | Calcite | 152, 278, 711, 1084 |
Calcite | Gypsum | 413, 1006 | |||
Quartz | Orange (red) | Red ochre (hematite) | 221sh, 281, 412 | ||
Calcite | 154, 281, 711, 1084 | ||||
Gypsum | 412, 492, 616, 1006, 1133 | ||||
11 | Red ochre | – | – | ||
Calcite | |||||
12 | Yellow ochre | 2 | Plaster | Calcite | 152, 710, 1084 |
Calcite | Orange | Yellow ochre (goethite) | 217, 281, 409, 608 | ||
Quartz | Calcite | 154, 281, 711, 1084 | |||
13 | Calcite | 3 | Plaster | Calcite | 152, 277, 710, 1084 |
Quartz | Grey | Amorphous carbon | 1317br, 1593br | ||
Calcite | 153, 278, 710, 1084 | ||||
Gypsum | 412, 492, 617, 668, 1006, 1133 | ||||
White | Calcite | 277, 711, 1085 | |||
Gypsum | 202, 484, 629, 673, 1008, 1019 | ||||
Amorphous carbon | 1317br, 1591br | ||||
Titanium white (rutile) | 441, 608 | ||||
14 | Lazurite | 3 | Plaster | Calcite | 152, 278, 710, 1085 |
Red ochre | Blue | Lazurite | 263, 541, 579sh, 815, 1092 | ||
Calcite | Grey | Amorphous carbon | 1354br, 1594br | ||
Quartz | Calcite | 144, 274, 1084 | |||
Titanium white (rutile) | 144, 247, 435, 609 | ||||
Celadonite/glauconite | 432, 540 | ||||
Massicot | 140, 293 | ||||
Gypsum | 417, 488, 620, 667, 1005, 1111 | ||||
15 | Celadonite | 2 | Plaster | Calcite | 152, 277, 711, 1084 |
Glauconite | Light-green | Celadonite/glauconite | 199, 275, 387, 531, 1052 | ||
Yellow ochre | Yellow ochre (goethite) | 381br, 484, 551sh, 1204br, 1271br | |||
Red ochre | Lazurite | 263, 285sh, 544, 582sh, 824br, 1093, 1358br, 1641, 2186br | |||
Coal | Calcite | 279, 1085 | |||
Calcite | Prussian blue | 275, 534, 2153 | |||
Quartz | Chrome yellow | 338, 401, 834 | |||
Barium white | 457, 615, 643, 985, 1086, 1138 | ||||
Titanium white (rutile) | 142, 252, 609br, 834 | ||||
Lead white | 1047 | ||||
16 | Celadonite | 2 | Plaster | Calcite | 152, 277, 710, 1084 |
Glauconite | Light-green | Celadonite/glauconite | 386, 537 | ||
Yellow ochre | Yellow ochre (goethite) | 389 | |||
Red ochre | Calcite | 149, 277, 1085 | |||
Calcite | Gypsum | 1006 | |||
17 | Red ochre | 3 | Plaster | Calcite | 152, 278, 711, 1083 |
Lazurite | Grey-blue | Amorphous carbon | 1315br, 1595br | ||
Calcite | Calcite | 148, 277, 1086 | |||
Red | Red ochre (hematite) | 221, 288, 401, 494, 607, 650, 1308br | |||
18 | Yellow ochre | 2 | Plaster | Calcite | 154, 279, 710, 1084 |
Calcite | Yellow | Yellow ochre (goethite) | 395 | ||
Quartz | Massicot | 141, 279 | |||
Calcite | 152, 279, 710, 1085 |