I also saw this mineral in Fujian a few years ago. At that time, I didn't know what it was. This time, let me buy this mineral again. Because this cave has Stilbite symbiosis, so I checked the information from the direction of zeolite. It may be determined that it is a rare mineral called clinoptilolite. It's not necessarily accurate. If you have different views, welcome private communication!

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!