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: 10.7 × 7.7 × 3 cm = 4.21” × 3.03” × 1.18”
Main crystal size: 2 × 2 cm = 0.79” × 0.79”