Online - Pay by credit card, check or your account.
By Phone - Call us at 800.628.7748 Mon. - Thurs. 7:30 - 4:00 pm, Fri. 7:30 - 3:00 pm
By Fax - Fax your order with ourpdf form.
Under the proper conditions, pure minerals will develop into crystal forms characteristic of the minerals. This collection includes specimens that exhibit crystal forms from the six crystallographic systems. A five page guide explains the terminology used in defining crystals as well as the characteristics of the six crystal systems.15 CRYSTAL SPECIMENS-sizes vary with specimens as available. Number-coded, compartmented container.