TC680TD: Elongated idiomorphic Brochantite crystals with very well defined faces and edges and deep color. On matrix, and partially covered by a later generation of fibrous crystals, of a lighter color and with a satiny luster.
The definition and size of the crystals, as well as their color, luster and, in general, their extraordinary quality, make this type of specimen the best in the world for the species.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (01/2015)

Specimen size: 7.5 × 4 × 3.6 cm = 2.95” × 1.57” × 1.42”

Main crystal size: 1 × 0.2 cm = 0.39” × 0.08”