Galena & Altaite - Dona Ana Co., New Mexico (MS-1968a)
Galena (PbS) & Altaite (PbTe) does not make an especially attractive specimen. However, Tellurium (Te) is among the rarest elements in the Earth's crust.
This specimen measures about 5cm x 3cm x 2cm. It will easily fit in a Small USPS Priority Mail Flat Rate box...with room for other items!