The fire dragon looked at the growing desert lilies and seemed incredibly excited to know that they could grow here. What Walker had not expected from all this, was that these desert lilies were also changing the red tin ore sands a little.
They had been taking the manas they needed to grow, and putting down roots. But as some grew fairly rapidly due to the nutrient potion and also Walker's skills, they had pulled and condensed some of the ore.
This was simply a little pressure from the speed at which the lilies absorbed the fire mana within the red tin ore sands. It was also the fact that the ore was soft, it was not as tough and dense as the other ores that could form within the fire elemental plane.