Pyrolusite is a form of Manganese Dioxide. It is prismatic steel gray with radiating iron black fibers. The geode is formed in volcanic eruptions. Pyrolusite is used to prepare disinfectants. It is part of the coloring ingredients used in printing, and in the manufacture of green and violet paints. It adds violet, amber and black colors to glass, pottery and bricks.
This geode was discovered in the Atlas Mountains of Morocco, North Africa.
This beautiful Pyrolusite Geode is approx 2 inches big!
Great scientific curiosity and a sure conversation starter!
This illuminated orbiter is great for demonstrations in the astronomy classroom!
Comprehensive collection of 30 fossils.
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!
This hanging Galileo thermometer is a gorgeous way to display the temperature outdoors!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
Working model representing the sun, earth, and moon and their relationships.