For example, many metamorphic limestones, marbles, and calc-schists, with crystalline dolomites, contain silicate minerals such as mica, tremolite, diopside, scapolite, quartz and feldspar.
en.wikipedia.org Because of the intrusion, a hike up the canyon below the notch can clearly show a well-developed metamorphic aureole and even inter-fingering textures between the intrusion and the bedrock.
en.wikipedia.org As metamorphism proceeds, many minerals coarsen and new, metamorphic minerals such as feldspar form.
en.wikipedia.org The most abundant rock types are quartzite and banded iron formation, with subordinate metamorphic gneisses, metaconglomerates and pelitic to semi-pelitic quartz-muscovite schists.
en.wikipedia.org It occurs most often in granite pegmatite and allied rock types and in certain low grade metamorphic phyllites.
en.wikipedia.org