Adamantite Ingot ★★

Taken all the way down to base materials, a batch of 3 Adamantite Ingot is 2 crafting steps deep and needs 1 intermediate — Adamantite Nugget ×2 — which resolves to 5 distinct raw materials totalling 19 units, plus 14 crystals.

That bill outweighs 7,589 of the 13,602 recipes tracked here and 733 of the 1,441 Armorer ones, and 4,464 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 10 are burned by the intermediates, so the real crystal cost is 10 Fire Crystal, 2 Earth Cluster and 2 Ice Cluster.

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

4 of the 5 raw materials come out of the ground, and 4 of them are time-gated: Adamantite Ore (0:00, 2:00, 6:00, 10:00, 12:00, 14:00, 18:00, 22:00), Blue Quartz (6:00, 18:00) and 2 others. The widest gap between consecutive opening times is 4 Eorzean hours, about 12 real-world minutes.

Adamantite Ingot is itself consumed by 28 further recipes, spanning two of the eight crafting classes.