Ornamental Crystal Array

Taken all the way down to base materials, one Ornamental Crystal Array is 2 crafting steps deep and needs 2 intermediates — Deepgold Ingot ×4 and Annite Whetstone ×1 — which resolve to 4 distinct raw materials totalling 28 units, plus 48 crystals.

That bill outweighs 9,936 of the 13,602 recipes tracked here and 1,645 of the 2,216 Goldsmith ones, and 4,464 recipes nest deeper.

Only 16 of those crystals go into the final step; the other 32 are burned by the intermediates, so the real crystal cost is 32 Fire Crystal and 16 Wind Crystal.

The chain crosses two disciplines — Goldsmith to Lv 90 and Blacksmith to Lv 72 — so no single class can finish it unaided.

All 4 raw materials are gathered, and one of them is time-gated: Hawk's Eye (6:00, 18:00). The widest gap between consecutive opening times is 12 Eorzean hours, about 35 real-world minutes.

Of the intermediates, Annite Whetstone has the widest use: 96 recipes call for it, spanning four of the eight crafting classes.