Quartz (variety amethyst) with Siderite

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

Specimen size: 19.4 × 13.4 × 7.8 cm = 7.64” × 5.28” × 3.07”
Main crystal size: 3 × 2.8 cm = 1.18” × 1.10”