| Directory Name | Material Class | Number of Spectra | Number of Species | Number of Data Files |
| AC-AC | metal acetyl.-acetonates (pressed pellets) | >150 | 19 | 20 |
| ACETATE | metal acetates (powders) | 15 | 2 | 2 |
| ALLOYS_l | metal alloys, steels (as rec'd, & etched) | >500 | 44 | >80 |
| ALLOYS_2 | metal alloys, steels (part II) | >350 | 33 | >60 |
| ALUM-SIL | metal alumino-silicates (nat'l crystals) | >40 | 3 | 3 |
| ANTISTAT | anti-static bag & coatings | 40 | 6 | 6 |
| BORIDE | metal borides (pressed pellets) | 36 | 6 | 6 |
| CALIRAT | energy scale calibration spectra | >300 | 2 | 87 |
| CARBIDE | metal carbides (pressed pellets) | >40 | 3 | 5 |
| CARBON | different forms of carbon | >120 | 13 | >25 |
| CARBONAT | metal carbonates (pressed pellets) | >150 | 15 | >15 |
| CATALYST | catalyst materials (new & used) | >170 | 15 | 28 |
| CHALCOGN | chalcogenides (cleaved in air) | >80 | 9 | 12 |
| CHROMATO | chromatographic materials (powders) | 20 | 5 | 5 |
| C_BLACK | carbon black materials (as rec'd) | 30 | 9 | 9 |
| C_FIBERS | carbon fibres (as rec'd) | 13 | 5 | 5 |
| DIAMOND | diamond related materials | 50 | 10 | 12 |
| ELEM_A-L | elements, Al - Lu | >450 | 48 | >100 |
| ELEM_M-Z | elements, Mg - Zr | >350 | 39 | >50 |
| FABRICS | fabric and cloth materials (as rec'd) | 12 | 2 | 2 |
| GLASS | glasses (cleaved in air) | >300 | 40 | >50 |
| GLOVE | contamination from gloves | >50 | 22 | 24 |
| HALIDE | binary halides (crystals cleaved in air) | >100 | 10 | >15 |
| HYDROXID | binary hydroxides (pressed pellets) | 60 | 8 | 9 |
| MINERAL | natural minerals (crystals cleaved in air) | >400 | 36 | 45 |
| MISC | miscellaneous materials | 140 | >25 | >25 |
| NlTRIDE | metal nitrides (as rec'd & etched) | >100 | 6 | 15 |
| OXID_BIN | binary oxides (pressed pellets) | >900 | 80 | >100 |
| OXID_MIX | mixed oxides (cleaved or pressed) | >120 | >15 | >15 |
| OXID_NTV | native oxide films on elements (as rec'd) | 200 | 41 | 41 |
| OXID_REO | rare earth oxides (pressed pellets) | 90 | 12 | 12 |
| PAPR&lNK | paper, fibres, and ink samp1es | >250 | 43 | 45 |
| PHOSPHlD | inorganic metal phosphides | >60 | 7 | 10 |
| POLYMER | organic polymers (exposed bulk) | >600 | 48 | 60 |
| PSG_SI | phosphorous silicate glass on silicon | 58 | 9 | 9 |
| REF_BE_l | reliable secondary reference energies | 72 | 52 | 172 |
| REF_BE_2 | energy scale calibration for REF_BE_1 | >300 | 2 | 80 |
| RESIDUE | tap water residues | 26 | 4 | 4 |
| SEMICON1 | semiconductor materials (cleaved/etched) | >650 | >70 | 110 |
| SEMICON2 | semiconductor related materials | >450 | 48 | 70 |
| SILIClDE | binary silicides (as rec'd & etched) | 50 | 2 | 6 |
| SULFIDE | binary sulfides (cleaved or pressed) | 100 | 10 | 14 |
| SUPERCON | superconductor materials (scraped) | 80 | 5 | 15 |
| SYSTMCHK | checks done on system behaviour | 230 | 3 | 96 |
| TITANATE | metal titanates (cleaved in air) | 31 | 3 | 4 |
| TRANSMIS | spectrometer transmission studies | 50 | 3 | 16 |
| TUNGSTAT | metal tungstates (pressed or cleaved) | 33 | 4 | 4 |
| VB_ELEM | valence band data from elements | 37 | 37 | 40 |
| VB_OXIDE | valence band data from binary oxides | 70 | 70 | 70 |
| VB_SEMIC | valence band data from semiconductors | 50 | 50 | 50 |
| ZEOLITE | zeolites (as rec'd after treatments) | 60 | 14 | 18 |
|
| | "Characterised Materials" TOTALS | >8400 | >1130 | >1780 |
