Bonsai Nutthe Hunt For Crushed Lava Rock
there is so much dust that comes from crushing this rock. i started with a hammer but found it better to use a tamper in a bin on top of asphalt hey all, i'm having a heck of a time finding crushed lava rock to add as a component to my soil. up to this point i've been just smashing i have a rock crusher that can make 1/8 inch lava rock, and along with that dust and the rest i will crush and sift for bonsai soil.many forms of pumice can be crushed between your fingers. others are pretty darn firm, more similar to what i think of as lava rock.,hastie's capitol sand and gravel3/8 mocha lava rock,natural, crushed, and jagged porous lava rock with all lava colors mixed into one blend (red, black, and mocha lava). may be used for retaining water if natural, crushed, and jagged porous lava rock that is brown in color (may include minimal red and black color). may be used for retaining water if used as natural, crushed, and jagged porous lava rock that is light to dark black in color. may be used for retaining water if used as garden rock.