- Thumbnail, 1.7 x 1.4 x 0.6 cm
- Mammoth-St. Anthony Mine, Tiger, Pinal County, Arizona, USA
A Major specimen of this ultra-rare species: it consists of two 2-cm crystals, almost doubly terminated, growing in parallel. Top color, and the size of the crystals, make this a very impressive thumbnail specimen. Large crystals are extremely rare and few are on the market in any quality.