The feldspar mineral has been ground using a planetary ball mill with a stainless steel ball and bowl. During grinding, the ground sample gets contaminated with Fe from ball and bowl wall, the same as the amorphization and agglomeration of fine particles that increase as grinding time progresses.
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Abrasives and Polishes. Specific Applications: Industrial cleansers; Stainless Steel and Cookware Polish; Commercial Floor Pads; Back in the late 1800s, it was discovered that the tools used to separate the feldspar mineral from the harder quartz and silica minerals were as shiny as silver with very few scratches.