Help clean this mineral!!??!!!!??!!

[Mineral Master]

Hey all, I have this quartz (At least I think it's quartz tell me if I'm wrong) I found it in a geode. But it is covered with lava rock, and I am wondering how to remove it with minimal damage to the quartz inside.[attachment 342971 Optimized-IMG_20170322_090043.jpg][attachment 342972 Optimized-IMG_20170322_090025.jpg]












Any help will be appreciated thanks.

i]Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free.[/i] –Ronald Reagan

 

[connerchris99]

I would tumble it for awhile. Since quartz is so hard it should remain intact if you don't tumble it too long. I use a sonic tumbler that is gentler on the rocks physically but faster in the process.