Question

rock 1: pemaquid point
black and white banded rock with coarse crystals of biotite, quartz, and garnet. foliation is associated with folds
which metamorphic rock is represented by the black - and - white banded outcrop at pemaquid point, containing coarse crystals of biotite, quartz, and garnet, with foliation associated with folds?
slate
phyllite
schist
gneiss
marble

Explanation:

Gneiss is a metamorphic rock characterized by its banded appearance (black - and - white bands in this case). It contains coarse - grained minerals such as biotite (a dark mineral), quartz (a common light - colored mineral), and garnet. Foliation (layering) in gneiss can be associated with folds due to the high - grade metamorphic processes (intense heat and pressure) that form it. Slate is fine - grained with a smooth surface and no coarse crystals. Phyllite has a shiny, silky luster and is finer - grained than gneiss. Schist has medium - to - coarse grains but typically has a more continuous foliation without the distinct banding of gneiss. Marble is composed mainly of calcite or dolomite (carbonate minerals) and does not have the mineral composition (biotite, quartz, garnet) described here.

Answer:

Gneiss