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Arizona but can also be located in New Mexico and Nevada
This polished specimen displays an ancient algal colony fossil from the Pennsylvanian Period (approximately 323–299 million years ago)
It is an important rock-forming mineral present in igneous
Together they create a striking contrast of earthy green and metallic gold
5" and weighs 3
Marcasite Quartz Cluster from Russia Mica Arizona but can also beThis beautiful cluster from Russia features shimmering marcasite and quartz. Marcasite is made of iron sulfide, with the same chemical formula as pyrite, though it forms in a different crystal structure. It typically appears metallic and pale bronze with a bright reflective luster. This item is 2. 75 x 1. 25 and weighs 1. 15 oz
US$ 324.60
US$ 411.49
US$ 631.49
