Rosell Minerales

Group of bustamite crystals, of good size and an intense orange-brown color, with visible faces. They are included in a matrix with calcite and galena. They present the natural brilliance, with exfoliation on some parts, this piece has not been acidified. Calcite is very active under UV light, with an intense orange emission. It is not very common to find pieces of this species and locality. It belongs to the collection of Joan Astor, with a handwritten label and another typewritten.

Size: 6.6 x 5 x 2.8 cm.
Main crystal: 4.6 cm.
Found in ±1977.

Col. J. Astor, Barcelona.
Calcite is fluorescent under LW-UV.

Very interesting specimen of opal with opalescence of violet, blue, green colors that fill the fissures of a xylopal. Very aesthetic due to its arrangement in veins, contrasting with the sienna warm colors of fossil wood. This Australian locality is known for opalized pineapples. Specimens from this locality are difficult to find.

Size: 10.6 x 3 x 2.5 cm.
Found in ca. 1983.

Col. Joan Astor (Barcelona).