A quintessential American classic. This significant Fluorite specimen from the legendary Minerva No. 1 Mine in Cave-in-Rock, Illinois, is a masterclass in saturation and zoning. We curated this piece for its vibrant electric-blue and royal-purple phantoms—a color profile that has made Illinois fluorite the most sought-after in the world. With a primary cube face measuring over 57mm, this specimen offers an impressive architectural presence that is becoming increasingly rare as these historic mines remain closed. It is a vibrant, well-preserved artifact from the golden age of American mineralogy, perfect for a collector who values both locality prestige and high-impact visual aesthetics.
At Gatsby Gems, we prioritize scientific accuracy as highly as aesthetic beauty. Every specimen in our Collector's Edition is cross-referenced with Mindat.org, the world's leading mineralogical database. By verifying locality data and crystal habits against global geological records, we ensure the provenance and authenticity of every piece in our gallery.
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