Description
Hausmannite (w/ Calcite)
A The entire specimen is composed of Hausmannite, with a beautiful display of it’s crystal structure in front. Small Calcite crystal can be seen throughout the front as well.
Hausmannite belongs to the Spinel group and forms tetragonal crystals, with the chemical formula MnIIMnIII2O4, MnO·Mn2O3, or Mn3O4
This Specimen suits the amateur, hobbyist and seasoned collectors alike.