I’m currently selling Super Enriched Bonding Agent for 315c in a shop stand.
I’ve added a stand downstairs today with refined gleam for 2c.
This means you need to spend 2835c on SEBA and 36c on gleam to make a mass craft of marble.
2871c divided by 50 blocks is 57.42c per block. if you buy refined rock from me the cost will be 59.22c per block.
For amounts over 100 I will hand trade the SEBA at 300c (splitting tax).
This creates a final price of 56.52 per block for the marble materials.