Opal-AN (Hyalite Opal) with Carbonate-rich Fluorapatite (var: Staffelite)When it comes to Hyalite Opal the proper name is Opal (var Opal AN) the specimens from Valec are the most famous in my mind. This material is essentially colorless and resembles lustrous glass beads. The historic old mines are now closed as they lay in a military reservation, and these specimens will never be found again. This beautiful piece features a group of intergrown glistening, colorless, spherical "bead" like nodules of Opal AN which have a

The underside of the piece shows the square cross-section of the once preexisting Anhydrite crystals that were the base for the cast

crystallized “balls” of beautiful soft purple Creedite sitting on host rock matrix

this specimen is a fantastic example showing the perfect scalenohedral form of the previous Calcite crystals which were replaced

This piece may have been mined in the 1960s or 1970s

and to have such an eye-catching display specimen like this is incredibly difficult to find

The color ranges from a nearly opaque white hue on the lower portion

Here we have a wonderful cabinet sized display specimen featuring fine quality

Great condition overall

pleasing green color casts of Prehnite after Anhydrite

Specimen # BOL711B16

sharp crystals in spherical form associated with rarely seen brass colored Stannite crystals and very unusual

where some of the globules are smooth and glassy