X-ray Diffraction Scattering of x-rays from a crystal where resulting interference pattern determines structure of crystal Performed by Mineral Services Lab at USGS Showed minerals consistent with each rock type –Serpentinite (lizardite, chrysotile) –Chert (quartz) –Sandstone (quartz) –Greenstone (albite, diopside) Scattering of x-rays from a crystal where resulting interference pattern determines structure of crystal Performed by Mineral Services Lab at USGS Showed minerals consistent with each rock type –Serpentinite (lizardite, chrysotile) –Chert (quartz) –Sandstone (quartz) –Greenstone (albite, diopside)