Yet again... stone.

[Sevenless]

Doesn't seem to be dependent on biome\players activity only. I have traveled like 5 hours away from the starting point, and came on an area with different biomes, all of which had very rare stones, if any at all. Had to travel a little bit back to settle down.

So not sure, does it mean there are less stones the further we are from the starting locations? Or just a random coincidence?

purely random. After my long stoneless march I ran into a pretty heavy deposit of em.

[Garfy]

Certain areas have stone, other areas simply do not. On top of that, a specific region of the world will have certain types of stone. You'll notice this once you start seeing lots of stone (the area I live in has lots of marble, porphyry and granite).

[TeckXKnight]

We're swimming in Malachite, Limestone, and Granite in my region.