NM86AJ0: Druse of Quartz (amethyst variety) crystals with a very short prism. They are transparent, very bright, with a uniform pale lilac color, and partially coated by small groups of Siderite crystals.
The specimen has been photographed and published in the magazine ‘Paragénesis’, number 01/2019, page 91
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”