White transparent ball, and brown ball symbiotic, do not know whether the two minerals are the same mineral, crystal prominence, and black bedrock form a sharp contrast, or very good-looking, two white ball is complete, some of the above crater-like depressions are naturally formed.

Our Mineral crystal Shop at Shantou,Guangdong,China
We can offer all kinds of chinese mineral crystals by wholesale or by retail.You are welcome to contact us in free time!
When in China, please come by for a visit. I would be very happy to meet with you!