Question

Two common metamorphic rocks that typically lack foliation are _____________ and ________________.

a) schist; limestone
b) slate; phyllite
c) quartzite; marble
d) gneiss; migmatite

Answer 1

Quartzite and marble are two metamorphic rocks that lack foliation.

Step-by-step explanation:

Two common metamorphic rocks that typically lack foliation are quartzite and marble. Quartzite is a high-grade metamorphic rock that forms from the metamorphism of quartzose sandstones or siltstones. It is usually composed entirely of interlocking quartz crystals. Marble, on the other hand, is a metamorphic rock that forms from the metamorphism of limestone. It is composed mainly of the mineral calcite.