Flint dust

Flint dust is a dust used to get Silicon Cell.

Crafting Table recipe:

Industrial Centrifuge recipe:
16xBasalt Dust → Peridot Dust + 3xCalcite Dust + 8xFlint Dust + 4xDark Ashes

Flint dust could be further processed in Industrial Electrolyzer.
8xFlint Dust + 2xEmpty Cell → Silicon Cell + Compressed Air Cell

Besides that Flint dust could be split into small piles using Crafting Table:

x4