Schedule 4—Minerals
1. Bentonite.
2. Fine clay.
3. Kaolin.
4. Lignite.
5. Minerals in alluvial form including those of titanium, zirconium, rare earth elements and platinoid group elements.
* * * * *
7. Quartz crystals.
8. Zeolite.
Sch. 4A inserted by No. 10/2014 s. 41, amended by No. 28/2019 s. 52.