I have a mining laser and a fault tracker and want to do some mining. However, most asteroid fields I come across only have worthless Metallic Ore with a few pieces of Obtainium. The only exception was an ice field which had some more vaulable stuff.
How do I find places that have more valuable materials? Is there a way to spot them without having to scan every minable asteroid individually to find out if there is anything valuable in the area?