A metamorphic rock derived from shale is ____. |
coal |
A metamorphic rock derived from limestone is ____. |
granite |
Limestone, sandstone, and ____ are sedimentary rocks. |
marble |
A coarse-grained, plutonic igneous rock is ____. |
mud |
A metamorphic rock derived from sandstone is ____. |
obsidian |
Over millions of years, pressure can convert peat into ____. |
quartzite |
Sandstone was made from sand. Shale was made from ____. |
shale |
A black, glassy, volcanic igneous rock is ____. |
slate |