tfc:knapping

#tfc:rock_knapping → rock/loose/granite, rock/mossy_loose/granite, rock/loose/diorite, rock/mossy_loose/diorite, rock/loose/gabbro, rock/mossy_loose/gabbro, rock/loose/shale, rock/mossy_loose/shale, rock/loose/claystone, rock/mossy_loose/claystone, rock/loose/limestone, rock/mossy_loose/limestone, rock/loose/conglomerate, rock/mossy_loose/conglomerate, rock/loose/dolomite, rock/mossy_loose/dolomite, rock/loose/chert, rock/mossy_loose/chert, rock/loose/chalk, rock/mossy_loose/chalk, rock/loose/rhyolite, rock/mossy_loose/rhyolite, rock/loose/basalt, rock/mossy_loose/basalt, rock/loose/andesite, rock/mossy_loose/andesite, rock/loose/dacite, rock/mossy_loose/dacite, rock/loose/quartzite, rock/mossy_loose/quartzite, rock/loose/slate, rock/mossy_loose/slate, rock/loose/phyllite, rock/mossy_loose/phyllite, rock/loose/schist, rock/mossy_loose/schist, rock/loose/gneiss, rock/mossy_loose/gneiss, rock/loose/marble, rock/mossy_loose/marble