Bixbyite on Rhyolite Matrix (Direct Mine Source) – Location: Thomas Range Juab Co. Utah. Thumbnail (see photo for more details). Here we have bixbyite crystal from the Solar Wind claim in the Thomas Range in Juab Co. Utah. Bixbyite was first discovered in the Thomas Range in the 1890?s by Maynard Bixby (type locality). The Solar Wind claim is the world class location for bixbyite. Here we have a well-formed and sharp modified bixbyite crystal; bixbyite is an (Fe Mn) Oxide. The bixbyite crystal is a black color and has a brilliant black metallic luster.