- Output of Quartz Stone in World and by Country in 1995Jan 15, 1996
- Output of Quartz Stone in United States in 1995Jan 15, 1996
- Output of Quartz Sand in World in 1995Jan 15, 1996
- Output of Quartz Sand in World in 1994Jan 15, 1995
- Output of Quartz Stone in United States in 1994Jan 15, 1995
- Output of Quartz Stone in World and by Country in 1994Jan 15, 1995