NX27AL0: Pineapple-like growth, complex, very three-dimensional, and on a matrix of doubly terminated Quartz crystals. They have good luster and are between translucent and transparent. The specimen is unusual because the crystals are on matrix whereas the vast majority of Berbes Quartzes are floaters.
It comes from the Miguel David Martínez collection (No. 377), whose label we will send to the buyer.
Berbes mining area, Berbes, Ribadesella, Comarca del Oriente, Principality of Asturias (Asturias)  Spain

Specimen size: 6.4 × 4.4 × 3.3 cm = 2.52” × 1.73” × 1.30”

Main crystal size: 4.5 × 3 cm = 1.77” × 1.18”