TP6AF7: Calcite on Quartz (variety chalcedony) - San Valentín open pit, Region of Murcia (Murcia) Spain
Calcite on Quartz (variety chalcedony)

San Valentín open pit, Sancti Espíritu, Sierra Minera de Cartagena-La Unión, La Unión, Comarca Campo de Cartagena, Region of Murcia (Murcia)  Spain

Specimen size: 8 × 4 × 3.9 cm = 3.15” × 1.57” × 1.54”
Main crystal size: 1.6 × 1.5 cm = 0.63” × 0.59”

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