- Quartz, Aerinite
- Olvera ophite, Olvera, Cadiz, Andalusia, Spain
- Thumbnail, 1.0 x 1.4 x 0.8 cm
A RARE and showy thumbnail cluster of lustrous, deep blue, bipyramidal quartz crystals colored by aerinite inclusions from near Malaga, Spain. Aerinite is a RARE silicate, found worldwide almost exclusively in Spain. A well-written article on this find is found in the Mineralogical Record, Volume 27, Number 2, 1996.