Thread: Few new stones..anyone recognize them?

I picked up a couple of stones today because they were for little money but not like anything I typically see or buy. The small square one looks to be wood almost but used a knife on it and it's a stone of some sort. Very light like driftwood almost. The larger square piece feels almost the same and still very light for a stone. Doesn't shave off as much as other one.. The smaller rectangle looks like possible washita but also feels lighter. The larger rectangle seems harder heavier and smooth.