I don't think there's any need to change the centrifuge glow. The bright green hue popularly associated with radioactive metals is the color of radium paint (or perhaps more commonly, the slightly yellower variant in the fuel rod seen in The Simpsons intro). Actual radioactive metals just look like metals, which is uninteresting, and radioactivity itself is almost impossible to see until levels get so high that it starts affecting equipment, such as the grainy quality in the iconic photograph of the "elephant's foot" at Chernobyl. I think it is good to have a visual glow to represent radioactivity for the player, and the bright vanilla green is not only what players will readily recognize, it is also more likely to pair well with other mods. (Space Exploration, for example, uses centrifuges for processing other things, and the glow color is determined by the recipe.) And if we want to get all realism about it, uranium ore, like other ores, comes in many colors and most of them are drab and don't stand out much from other ores. It takes a trained eye to tell uranium ore apart from just basic rocks, as I noted in a Cody's Lab video involving actual uranium mining in a real uranium mine. Like most reactive metals, uranium can be used to make pigments and colored compounds of several colors, with bright yellow-greens being perhaps among the best represented in our industry and antiques scene.
