Astral Silk Doublet of Casting ★★

Taken all the way down to base materials, one Astral Silk Doublet of Casting is 3 crafting steps deep and needs 8 intermediates — Astral Silk ×3, Grade 2 Intelligence Dissolvent ×2, Aurum Regis Ingot ×1 and 5 others — which resolve to 19 distinct raw materials totalling 52 units, plus 41 crystals.

That bill outweighs 12,890 of the 13,602 recipes tracked here and 1,892 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 37 are burned by the intermediates, so the real crystal cost is 15 Lightning Crystal, 7 Lightning Cluster, 6 Wind Cluster and 4 other kinds.

The chain crosses three disciplines — Weaver to Lv 60, Alchemist to Lv 60 and Goldsmith to Lv 60 — so no single class can finish it unaided.

11 of the 19 raw materials come out of the ground, and 8 of them are time-gated: Chysahl Greens (0:00, 4:00, 8:00, 12:00, 16:00, 20:00), Astral Moraine (0:00, 12:00) and 6 others. The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Of the intermediates, Aurum Regis Nugget has the widest use: 185 recipes call for it, spanning seven of the eight crafting classes.