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Please click on the spectral data links available below to view the interactive spectrum and sample details.


Record   Sample ID Material Class   Chemical Information Spectral data
Aegirine PK11141 Mineral pigments NaFeSi2O6
Aegirine (large piece) PK111405 Mineral pigments NaFeSi2O6
Alabaster Modelling Plaster PK58343 Mineral pigments Calcium sulfate hemi-hydrate (CaSO4 x ½H20), beta-hemihydrate gypsum
Alabaster Plaster (brilliant white) PK58340 Mineral pigments Alpha-hemihydrate gypsum
Alba Albula PK11283 Mineral pigments CaCO3
Alba Albula (stone) PK112835 Mineral pigments CaCO3
Albumine PK63250 Glues, gums and binders Egg-white powder
Alizarine PK94100 Synthetic dyes 1,2-Dihydroxyanthraquinone, C14H8O4
Alizarine Carmine PK94150 Synthetic dyes Sodium alizarine sulfate, C14H7NaO7S
Alizarine Crimson (light) PK23600 Organic pigments, synthetic Monoazo; Naphthol, C24H16Cl3N3O2
Alkanna roots PK37250 Natural organic dyes and pigments Alkanna roots (Alkanna tinctoria)
Aloe PK38010 Natural organic dyes and pigments Obtained from the leaves of various Aloe species; contains the anthraquinone pigment aloin
Aluminium -di/tri-stearate PK58960 Unclassified materials Aluminium soaps of the fatty acids C16-C18
Aluminum Powder PK54800 Metal powder Aluminum (97%)
Amazonite Hakusui-Matsu (Iwa-Enogu) PK1674508 Mineral pigments Amazonite (green to blue-green variety of K-feldspar, usually microcline), K(AlSi3O8)
Amber PK60200 Resins, balsams and wax Fossil resin derived from Pinites succinifer
Amber (powder) PK60210 Resins, balsams and wax Fossil resin derived from Pinites succinifer
Amberg Yellow (deep) PK40280 Earth pigments Natural yellow earth from Germany; Mixture of natural calcium carbonate and earth containing iron oxide
Amethyst PK11315 Mineral pigments Purple variety of the mineral quartz / SiO2
Andeer Green PK11181 Mineral pigments light green mineral very similar to serpentine
Andeer Green (coarse) PK11183 Mineral pigments light green mineral very similar to serpentine
Aniline Black Pk24100 Organic pigments, synthetic Azine, C66H51Cr3N11O12
Annatto seeds PK37350 Natural organic dyes and pigments Seeds from Bixa orellana
Anthradquinone Scarlet PK23200 Organic pigments, synthetic Brominated anthranthrone, C22H8Br2O2
Anthraquinone Blue PK23100 Organic pigments, synthetic Synthetic organic indanthrone, C28H14N2O4