Botryoidal amethyst

Length 5.9 x 2.2 x 3.5cm
 Location: Mamuju area (Manakarra), West Sulawesi Province, Indonesia
 Microcrystallization of amethyst in Botryoidal form, Crystallizations typical of this deposit, locally called "Agate Grappe " or Chalcedony, these very aesthetic samples are appreciated by collectors for their originality.
 Dimensions without the acrylic base, which is supplied with the mineralogical specimen.
 The mineral is not glued to the base (soft mastic).