Iron-black shiny magnetite OKTAEDER on quartzPORPHYR.
Detailed description for Art. AA045 - MINERALS FROM AMERICA
Place of discovery: POTOSI - BOLIVIA
Weight: 840 g Dimensions: 15 x 8 x 5 cm
The magnetite crystals are all shiny, but in the photos only those whose faces were at the right angle to the camera. Sorry - unfortunately these photos didn't turn out well, so the step looks better in reality.