I feel that not only are most ores sort of boring-looking, that the effects should be swapped around a bunch. For example nhurgite has super low base value, while corazium has very high value. Nhurgite has this fancy glowy green color, while corazium is a barely-shining greeny-emerald color. In my opinion swapping the two wouldn't hurt at all, just to help with intuitivity. "Mine the glowy shit" sounds way more believable than "Mine the weird emeraldy dull green stuff"