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    Selenium, 99.99%
    Gallium, 99.99%, trace metal basis
    Iron, 99%, powder
    Tellurium, 99.8%, powder, 200 mesh
    Graphite, 99%, powder
    Boron, 99%
    Boron, 99%, amorphous, <1 micron
    Selenium, 99.999%, powder, 200 mesh
    Iron, 99.8%, Powder, spherical, <10 micron
    Boron, 99%, amorphous, 3 μm
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