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 kit allows to build up to 3 different robots!
Watch what your music can create with this amazing Snap Circuits set!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
Use this laser pointer for any professional presentation!
Easily assemble a working alarm motion detector!
Build a hand that realistically moves its fingers using shape memory allow technology!