Macrophotograph of the color and patterns in a backlit piece of carnelian from Washington State Image #3668 4679 X 3095 pixels
Macrophotograph of a slab of the gemstone Lapis lazuli; consists largely of lazurite (blue) with specks of pyrite (golden) Image #3862 6144 X 4080 pixels
Macrophotograph of quartz crystals and pyrite; from Peru Image #3565 3198 X 4598 pixels (4.97 MB)
