Adamantite Alembic

Taken all the way down to base materials, one Adamantite Alembic is 3 crafting steps deep and needs 3 intermediates — Adamantite Nugget ×5, Adamantite Rivets ×2 and Aurum Regis Nugget ×1 — which resolve to 4 distinct raw materials totalling 36 units, plus 43 crystals.

That bill outweighs 11,383 of the 13,602 recipes tracked here and 1,196 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 3 of those crystals go into the final step; the other 40 are burned by the intermediates, so the real crystal cost is 35 Fire Crystal, 5 Wind Crystal, 2 Ice Cluster and 1 other kind.

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

All 4 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.