| Parent | Low | Intermediate | High Grade |
|---|---|---|---|
| (Shale) | Slate |
Schist |
Gneiss |
| (Basalt) | Greenshist |
|
Granulite |
| (Limestone) | Marble |
||
| (Sandstone) | Quartzite |
||
© 1997, W.K. Fletcher
Department of Earth and Ocean Sciences
The University of British Columbia
http://www.science.ubc.ca/geol100/fletcher/met_kinds.html