Chrysocolla Sphere and Other Stone Works

I took some time off from work to work on some of my music side projects and an iphone app I’ve been working on. But I couldn’t help but make some time to grind out some stone work! I got a request to make some custom pendants from a couple folks from work which is always nice to hear. Of course while I’m making the pendants I had to tend to a few spheres as well to make the best use of my time. The pictures are below. I was really shocked by how the Chrysocolla sphere turned out. I have never worked with this material before and from the outer appearance of the rock it appeared to be mostly black…until I cut into it. I’ll attach the original picture of the black chrysocolla rock as well. I could use some help on getting the crosses to turn out better. I do everything on the wheel. If anyone out there has any suggestions to help me get better drop me an email from the contact section. I’m all ears!