Adamantite Hoplon

Taken all the way down to base materials, one Adamantite Hoplon is 3 crafting steps deep and needs 4 intermediates — Adamantite Nugget ×4, Adamantite Rivets ×1, Aurum Regis Nugget ×1 and 1 other — which resolve to 5 distinct raw materials totalling 35 units, plus 38 crystals.

That bill outweighs 11,223 of the 13,602 recipes tracked here and 1,179 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 35 are burned by the intermediates, so the real crystal cost is 25 Fire Crystal, 10 Wind Crystal, 2 Ice Cluster and 1 other kind.

The chain crosses four disciplines — Armorer to Lv 60, Blacksmith to Lv 58, Carpenter to Lv 58 and Goldsmith to Lv 58 — so no single class can finish it unaided.

All 5 raw materials are gathered, and 3 of them are time-gated: Adamantite Ore (0:00, 2:00, 6:00, 10:00, 12:00, 14:00, 18:00, 22:00), Darksteel Ore (1:00) and 1 other. 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.