Please be aware that Stones still cannot be created at a quality of level 1 or higher.
To purchase Marble for the construction of a Wonder of the World you must buy it from the Market Place where a new NPC has setup shop.
While at the Market simply click > Basic construction Materials followed by > Stones.
This NPC also has an unlimited stock but charges 1,000 ¢τ per Q1 Stone.
Also note you must be within a Guild before this offer appears.
Wonders of The World - Marble
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