A novelty at Tucson 2014. Transparent botryoidal growths on matrix, with small sprays of whitish, elongated and tubular forms. This kind of Opal (variety hyalite), in addition to the fact that it is gemmy and quite aesthetic and stands up well on its matrix, has the extraordinary property of fluorescing in daylight! In fact, it fluoresces in almost all types of light: neon light, LED light, daylight and, of course, UV light. The only light with which it doesn’t react is incandescent. As the find is so new the locality is still very vague; sorry for that, but we are sure that time will clarify the locality as well as the reason why the specimens fluoresce so strongly. On this sample the peculiar tubular growths above cited, which you can see on the close-up image, caught our attention. We had them analyzed, and they proved to be an unspecified form of silica. We will send a copy of the analysis to the buyer.
Zacatecas Mexico (2013-2014)
Specimen size: 8.2 × 5.1 × 4.5 cm = 3.23” × 2.01” × 1.77”
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