Miniature, 4.4 x 3.0 x 2.0 cm
Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA

A rich specimen with brilliant blue crystals of diaboleite to 6mm. It is relatively large and colorful for the price, as well, in my opinion. Ex Mark Hay, Grace Dearborn collections. 4.4 x 3 x 2 cm