BEAUTIFUL DOUBLE PLASTER CRYSTAL IN PERFECT FORMATION, ON ITS MATRIX. PIECE EXTRACTED IN PILAR DE JARAVIA, PULPI, ALMERIA.
Gypsum is a mineral composed of calcium sulfate.
It is a sedimentary rock of chemical origin. It is very common and can form sedimentary rocks.
Gypsum crystallizes in prismatic habit, tabular and rhombic shaped crystals with beveled edges. It appears in crystals, sometimes large and arrowhead or spearhead.
