No, Chemo, that is a SMALL dime. He got that the same place Hematite got those little bitty quarters in the pictures of his crystals grown in a thermos bottle.
Crystal shape has a lot to do with the solvents used and how fast the crystal is grown. You will note different shapes with acetone/water, ISO/acetone, iso/water/acetone, MeOH/acetone, MeOH/water. Also meth crystals grown in a single solvent have different shapes. Take, for one, the meth crystals that appear in really dry acetone. Meth is very slightly soluble in dry acetone, not enough to be a problem, but enough to recrystallize in longer spikes with short spikes on each end. Very pretty.