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Departments & Programs


  • JEOL JXA-8230 Electron Microprobe

    The JXA-8230 provides micron-scale quantitative chemical analysis of solid materials and compositional imaging based on X-rays, backscattered electrons, and full-color cathodoluminenscence (CL).

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  • X-ray Diffractometer

    Our “workhorse” powder X-ray diffractometer can readily identify minerals in powdered form, including mixtures of phases.

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  • Scanning Electron Microscope

    This SEM is useful for routine electron imaging of solid materials and for monochrome cathodoluminescence (CL) studies of minerals such as zircons.

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Welcome to the Mineral Analysis Facility

The Mineral Analysis Facility in Stanford University’s School of Earth Sciences hosts several instruments used to characterize minerals, rocks, and the solid products of laboratory experiments on inorganic materials of interest in geosciences, materials science, and applied physics.

The centerpiece of the facility is a state-of-the-art JEOL JXA-8230 electron microprobe, capable of micro-chemical analyses and compositional imaging (X-rays, electron, and ‘hyperspectral’ cathodoluminescence) of a wide range of solid materials, covering the periodic table from boron to uranium and concentrations as low as 10’s of ppm. Also supported are a Rigaku powder X-ray diffractometer, which can readily be used to identify and characterize powders of minerals or mixtures of minerals and other crystalline materials. The third instrument (operated with the ion microprobe facilty, SUMAC) is a conveniently-used scanning electron microscope (SEM), for routine imaging with electrons or cathodoluminescence (CL).







Stanford's New Electron Microprobe

The JEOL JXA-8230 "SuperProbe" is up and running!