- Caledonite, Diaboleite
- Miniature, 5.0 x 4.2 x 2.6 cm
- Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
This is a superb specimen. It is solid caledonite, with sharp crystals poking out all over, and with minor deeper blue Diaboleite crystals on the backside. It is likely that this piece was mined prior to 1960. Ex. American Museum of Natural History and Larry Conklin Collections.