Macro photograph of a polished slab containing chrysocolla (blue) and malachite (green) from the Bagdad copper mine in Arizona Image #3304 pixels 4696 X3200
Macrophotograph of a cluster of peridot crystals from Arizona. Most peridot is approx. 90% forsterite which is a form of olivine with a high magnesium content. Image #4113 4800 X 3200 pixels
Macro photograph of linear patterns in a Whitcomb Creek geode from Oregon; a geode is a stone nodule with an inner cavity filled with crystals or mineral matter Image #3287 4739 X 3083 pixels
