quartzite
C30958
concept
Quartzite is a hard, non-foliated metamorphic rock formed from quartz-rich sandstone that has been subjected to high heat and pressure, resulting in a dense, interlocking quartz grain structure.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| silica-rich rock | 2 |
Instances (3)
| Instance | Via concept surface |
|---|---|
| Heavitree Quartzite | — |
| Stiperstones Quartzite | — |
| Flint | silica-rich rock |