Rosell Minerales

Aesthetic specimen of opal with notable bluish iridescences in a very fine-grained sandstone matrix. From Quilpie area, a locality with an economy based on the grazing and mining industries. The area has one of the largest deposits of boulder opal in the world. A gem...

Size: 7.8 x 6.2 x 2.7 cm.

Col. H.G. Hoppert.

A classic banded opal from Australia, with violet, green, blue colors. With a good exposed surface showing opalescence. It comes from the A. Trigo collection.

Size: 4.8 x 4 x 2.1 cm.
Found in ca. 1988.

Col. Antonio Trigo (Mataró).