Rainbow Rock Shop Ozarks Region Get Directions Tell us why this business is your favorite! Physical Address: U.S. 65 North & Ark. 27 Marshall, AR 72650 Phone: 870-448-3865 GPS: N35.9073125 W92.6261649 Food Service/Picnic Area Available Arkansas quartz crystal, geodes, all rocks and minerals, rock jewelry, onyx gift items Accessible Add to Trip Planner Comments: Wanda Chapman · Delhi, LA This has been a favorite stop of ours since the 1970s. I can find just about anything I want to add to my collections there. I am constantly amazed at the "jewels" that come from our earth. Tell us why this business is your favorite!