Table 3. Modifications and residues on Porc-Epic Cave's ochre processing tools and ochre-stained artefacts.

Num	FS	Pits	LI	Sm	Micr	DG	Str	Residue colour*	Residue loc
1	-	2F	-	2F	-	-	-	R + (Y)	2F
2	-	-	-	2F	-	-	-	R + Y	2F, L
3	2E	2E	-	2F	1F	-	-	R	2F
4	-	1E	-	-	-	-	-	R + (Y)	ES
5	-	-	1F	-	-	-	-	R + B	1F
6	1E, L	-	-	2F, L	-	-	-	R + (Y)	1F, L
7	-	-	-	1F, L	-	-	-	R + (Y)	ES
8	-	-	-	1F	-	-	-	R + (Y)	1F, L
9	-	-	-	1F	-	-	-	R + (B +Y)	1F
10	L	-	-	1F	-	-	-	R + (Y)	2F
11	-	-	-	1F	1F	-	-	R	2F
12	-	-	-	1F, L	-	-	-	R	1F
13	-	-	-	1F	1F	-	-	BRR + Y	1F
14	-	-	-	1F	1F	-	-	R + (Y)	1F
15	L	-	1F	-	-	-	2F, L	R + (Y)	ES
16	-	-	-	-	-	-	-	R + (Y)	1F
17	-	-	-	-	-	-	-	R + (Y)	1F
18	-	-	-	1F	-	-	-	R + (Y + O)	1F
19	-	L	-	-	-	-	-	R + (Y)	1F, L
20	2E	2E	-	1F, L	1F	1F	-	-	-
21	2E	2E	-	-	L	-	-	-	-
22	-	1E	-	-	-	-	-	R + (Y)	2F
23	-	ES	-	-	-	-	-	-	-

Num: number; FS: flake scars; LI: linear impressions; sm: smoothing; micr: microstriations; DG: deep grooves; str: striations; loc: location; 1E: one end; 2E: two ends; 1F: one face; 2F: two faces; L: lateral face(s); ES: entire surface; R: red; Y: yellow; B: brown; BRR: brownish red; O: orange. The objects' identification number is the same as presented in Figs 4–11, Tables 1, 2, 4 and 5, S1 and S2 Figs, S1 Table, S1 Text.

* In brackets, coloured residue visible under optical microscope.