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Perfect for collectors or home decor. This specimen of Mercenaria permagna is an excellent find for collectors! 🐚 It is estimated to be between 1 to 2 million years old and was discovered in a now-private mine in Florida. The specimen includes a matrix with smaller shells alongside a half shell. Notably, it features highly fluorescent yellow honey calcite 🌟 and retains the cellular structures of living organisms, which contributes to its bioluminescence. This piece is incredibly rare and highly sought after! 5 1/2 inches long by 4 inches wide by 1/2 inch thick 324.9 grams (0.72 lbs)