Gonnardite
Cerro Moreno volcano, Almagro, Ciudad Real, Castile-La Mancha, Spain
3.8 x 3.5 x 2.0 cm. Mineral specimens are uncommon from this less well-known quarry. Gonnardite is a fairly rare Zeolite Group species. Snow-white crystals line a vug on this showy and highly representative example from the Josef Vajdak Collection.
© Rob Lavinsky & irocks.com