There is no safe public price table yet
The Roblox page says ore breaks away from the voxel planet in tiers, naming Azurite and Aurum as examples. It also says planet evolution unlocks rarer ore and larger worlds. That confirms the progression pattern, but not a fixed value for either ore.
For a useful comparison, record the cash shown for one full cargo load and time how long the drones take to fill and return it. A higher sell value is not automatically better if the ore takes much longer to mine or leaves cargo space unused.