Show sample as: 72-frame QuickTime VR or 360-frame QuickTime movie loop.    My periodic table poster is now available! Tiny crystal. This is a small chip from a small bag of tellurium crystals I received from Oliver Sacks on a visit. I used it to test my very small turntable, constructed to allow accurate rotation of samples down to a couple of mm in size. Source: Oliver Sacks Contributor: Oliver Sacks Acquired: 4 August, 2004 Price: Donated Size: 0.1" Purity: 99.9%