TR13AG1: The Volborthites of Milpillas are among the most spectacular discoveries that have happened in the mineral world in recent years. In general they are of an enormous quality and in aspects this great rosette of crystals with Malachite and on matrix stands out among all others. If someone wants a definitive piece, here it is.
The specimen has been reviewed, photographed and published in the magazine ‘Mineral Up’ on page 69 of the 2017/01 edition
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2015)

Specimen size: 4.9 × 3.5 × 2.2 cm = 1.93” × 1.38” × 0.87”

Main crystal size: 3.3 × 1.4 cm = 1.30” × 0.55”