Moldavite and Quartz
Also late to the game, but I'll jump in here too.
Moldavite is the ultimate stone for me to release what no longer serves. I've got a gem-grade quality pendant and, when I wear it, I start cleaning the house, throwing out old stuff, etc. Mostly, it helps me release energetic/emotional things that no longer serve.
Not everybody reacts to Moldavite the same way. I don't experience any of the side effects that people report. Try holding a piece of Moldavite in a shop before you buy it to see how you react.
The easiest thing is to get a regular piece of quartz, cleanse it, and then program it to release what no longer serves. Basically, you can program quartz for anything and that's one of the reasons why I love it!