Show sample as: 72-frame QuickTime VR or 360-frame QuickTime movie loop.    My periodic table poster is now available! Dendritic crystal. These dendritic crystals were probably grown electrochemically. They are extremely shiny, very delicate little things, like jewelry. Source: Frank Liebscher Contributor: Frank Liebscher Acquired: 28 January, 2004 Price: Donated Size: 1" Purity: 99.99%