Quartz stone.
53% quartz as unstrained to mildly strained free simple grains (47%) or composite grains (6%)
11% quartz as moderately strained simple or composite grains
1% vein quartz (highly strained)
1% quartz as highly strained simple grains
2% quartzite (moderately strained)
2% chert (finely microcrystalline quartz)
20% feldspar (slightly sericitised and saussuritised)
.
Crystal quartz chips, quartz chips.
Quartz for solar and semiconductor.
Quartz.
