Yes, but there is a difference in the size of the particle. You can find powder that is 320 mesh, 400 mesh, etc. from the chemical industry. What you should get is a good quality micronized chromium. With particles of a single size. Pure, and with very low retention.

Of course, if you get powder you must put into a suspension. Water based, oil based it´s your choice.

The information I found in this forum gives me the idea that all chromium is 0.5 micron, what to my knowledge is not correct. I use two sizes 1 micron and 0.5 micron.

Chromium is used to manufacture polishing compounds at different levels of technical demand. You can find some compounds refered as green chrome (usually they look like a gold bar) that are a mix of abrasive particles of different sizes and types. I think the finest thing you can find are pastes for sample preparation for laboratory analysis. This is probably the application that will demand the most.

You can also use diamonds that comes at different particle sizes, uniformity, suspension, quality, etc. Or even micronized aluminium (a white powder, not green), that can go down to 0.3 micron if I´m not wrong. Of course, they all look different at microscopic. I only use chromium.


Best,
Felipe