Quartz - Quartz outcrop, La Rioja, Spain - 35mm x 33mm x 10mm; xl = 7mm.
Mineral: Quartz
Locality: Quartz outcrop, Cervera del Río Alhama, Comarca Cervera, La Rioja, Spain
Dimensions: 35mm x 33mm x 10mm; xl = 7mm.

Description: Quartz on Calcite.