This Hyalite Opal mineral specimen is very lustrous and gemmy. It is from San Luis Potosi, Mexico, and the size is 6.7 x 5 x 3 cm. This specimen has a nice growth of clear opal around a white Chalcedony center, and some yellow inclusion on the bottom, the clear opal will fluoresce when exposed to a short wave black light. There is not damage to it, only small contact areas on the side.
BRAZARTE, worldwide fine minerals specimens since 1998.