Usually they are in the ground.
Pennsylvania is home to quartzite, slate, marble, phyllite, gneiss, and schist
Quartzite, marble and conglomerate.
marble and quartzite
marble, quartzite, cataclasite, metabasalt
No. Non-foliated metamorphic rocks include quartzite and marble.
Examples of non-foliated metamorphic rocks are quartzite and marble.
Pennsylvania is home to quartzite, slate, marble, phyllite, gneiss, and schist
Quartzite comes under the metamorphic section of rocks.
Metamorphic rocks
Yes.
Quartzite.
gniess, slate, and quartzite
Quartzite, marble and conglomerate.
Quartzite is sandstone (sedimentary rock) that has metamorphosed from heat and pressure.
Gneiss metamorphic rocks, a stressed formation produces it along with quartzite and schist, two other metamorphic rocks.
they're all metamorphic
marble and quartzite