This is a fine, old locality specimen of Vivianite from Bolivia. This small cabinet size piece features beautiful, semi-lustrous, gemmy, blue green, prismatic crystals of Vivianite measuring up to 1.3 cm associated with tan discs of Siderite with a "dusting" of black Sphalerite on matrix. This material is rarely seen in today and this particular specimen is at least 25 years old.