Quartz (variety amethyst) with Siderite

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: 19.2 × 14.8 × 8.4 cm = 7.56” × 5.83” × 3.31”
Main crystal size: 2.7 × 2.6 cm = 1.06” × 1.02”