gneisses

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Specimen of gneiss and schist rock isolated on a white background. metamorphic rock. Royalty Free Stock Photo

The particular waterfall of Noasca in Piedmont/ Italy is located behind the houses near the Great National Park Royalty Free Stock Photo

The particular waterfall of Noasca in Piedmont/ Italy is located behind the houses on the border of the famous Great Paradise Royalty Free Stock Photo

The particular waterfall of Noasca in Piedmont/ Italy is located behind the houses Royalty Free Stock Photo

Schist and gneiss rock isolated on a white background. metamorphic rock. Royalty Free Stock Photo

Raw of gneiss and schist stone isolated on a white background. metamorphic rock.

Schist rock isolated on a white background. metamorphic rock. Royalty Free Stock Photo

view of the kamienne -suche- mountains - from wlodarz mountain Royalty Free Stock Photo

Sample of gneiss and schist stone isolated on a white background. metamorphic rock. Royalty Free Stock Photo

Schist and gneiss are produced by medium to high grade metamorphism. In some cases gneisses are produced by higher grade metamorphism than schists. Low-grade metamorphic rocks tend to be fine-grained. High-grade metamorphic rocks tend to be coarse-grained.