Copper Crystal - 8.85" Native Copper mm3_collection from the famous Alcatraz Island

from the famous Alcatraz Island

gastroliths are common digestive aids among amphibians

000 pieces

5 to 2cm) wide

gastroliths are usually associated with sauropods

Copper Crystal - 8.85" Native Copper mm3_collection from the famous Alcatraz IslandOne of the most malleable materials known to man, copper guided human civilization out of the Stone Age and into the Age of Metals. These stunning native copper crystals form beautiful, complex lattices, revealing the many forms this material is capable of taking. This specimen is a native copper crystal recovered in Kazakhstan, measuring 8. 85". Featured in the Fourth Edition of the Mini Museum, we are proud to present native copper crystals as a