Metamorphic Rocks

Question 1

Do not display foliation

Answer 1

Nonfoliated Metamorphic Rock

Question 2

Foliated

Fine-grained, minerals not visible, usually splits into sheets (fissile), color usually dark

Answer 2

Slate

Question 3

1. Contact- local roads touching —> igneous and intrusion
2. Regional- large area —-> related to mountain building

Answer 3

Types of Metamorphic Rocks

Question 4

Foliated

Coarse grained, minerals segregated so as to impart a banded texture to rock

Answer 4

Gneiss

Question 5

Nonfoliated

Crystalline, dark color, may be spotted

Answer 5

Amphibolite

Question 6

Foliated

Answer 6

Muscovite Garnet Schist

Question 7

Foliated

Fine grained, silky sheen, wavy foliation common, may have porphyroblasts

Answer 7

Phyllite

Question 8

Nonfoliated

Crystalline, sugary appearance, will effervesce in acid, light colors

Answer 8

Marble

Question 9

A rock which displays a parallelism or subparallelism of its consituent mineral grains. Foliation may result from the orientation of nonequidimensional minerals or from segregation of different minerals into layers

Answer 9

Foliated metamorphic rock

Question 10

Foliated

Coarse-grained, closely spaced oriented nonequidimensional minerals predominate

Answer 10

Biotite Schist

Question 11

Nonfoliated

Granular, sharp edges, breaks with conchidal fracture

Answer 11

Quartzite

Question 12

Large grains, usually with well developed crystal faces

Answer 12

Pophyroblasts