NK60AN2: Rosette aggregate of Calcite pseudomorphs after Gypsum crystals, translucent, with a certain luster and a uniform creamy white color. The specimen comes from a recent find in an area where we were not previously aware of the presence of these curious pseudomorphs. A rarity.
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid  Spain (09/2020)

Specimen size: 5.7 × 5 × 5 cm = 2.24” × 1.97” × 1.97”