Bijou, pendentif, PrénitePrehnite is a calcium and aluminum silicate that forms in the cracks of volcanic and metamorphic rocks, often in association with basalts and gabbros. Its orthorhombic crystal structure gives it a beautiful translucency and hues ranging from soft green to pale yellow, sometimes marbled with pearly reflections. The stone is surrounded by 925 silver Size of the stone: 1,2 cm x 0,5 cm 18 in. chain. included The photo actually represents the jewelry you