Indigo
Indigo The pigment indigo is a natural dye that was extracted from the gland of the Phoenician sea snail (Murex brandaris). About 8000 snails were needed to produce 1 g dye. Naturally, the wool dyed with indigo was expensive. The dye was produced mainly at the Phoenician coast. Exod 25:4 ; 26:1 , 26:4 , 26:31 , 26:36 ; 35:6 , 35:8, 35:23 , 35:25 , 35:35 ; 2 Sam 1:24 ; Prov 31:22 ; Song 3:10 ; 7:5 ; Jer 4:30 ; 10:9; Lam 4:5 ; Ezek 23:6 ; 27:6 , 27:16 , 27:24 ; Dan 5:7 , 5:16 , 5:29 ; Jonah 3:6 ; Nah 2:3 ; Sirach 40:4–5 ; 45:10 ; 1 Macc 4:23 ; 8:14 ; 14:43 ; Luke 16:19 ; Rev 17:4 ; 18:12 , 18:16