Strombolian - These eruptions are characterized by distinct blasts of basaltic to andesitic magma from the vent. 1  These blasts produce incandescent bombs that fall near the vent, eventually building a small cone of tephra (cinder cone). Sometimes lava flows erupt from vents low on the flanks of the small cones.
Use steel wool for a satin finish. The scratch pattern left by a gray abrasive pad on the top is more aggressive and uneven than that left by 0000 steel wool. you get a better surface by rubbing out the final coat with steel wool than with an abrasive pad.
Wool. polyester fiber; for the base shape, use any cheap wool or synthetic material that can be felted, if you want to save high quality wool. the hair was made using a felting needle with reversed barbs which pulled fibers out of the shape.no synthetic fiber was added inside this toy to avoid it coming out as hair. by adding a combination of wools of different colors inside the sculpture you can create spots and transitions when using this technique.s you felt the base shape and then add layers of wool, the felted material gets harder and harder with each needle stroke. It's possible to make wool almost rock hard by felting, after which you won't be able to further shape it with a felting needle.