Description: A fossilized shell of Mercenaria sp. the interior of which is now occupied by honey-colored Calcite crystals filling most of the available inner space. The Calcite crystals “borrowed” calcium from Mercenarias for their growth. Ruck's pit, Okeechobee County, Florida, USA Mined in 2003 Specimen size: 5.3 × 3.3 × 3.6 cm. Extremely fluorescent long & short UV Photo: Reference Specimens -> http://www.fabreminerals.com/specimens/RSUS-usa-notable-specimens.php#TA58H2

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