Mica-schist and gneiss are typical examples.
"Geology"
James Geikie
"Gneiss rock for eleven hundred feet and then some mica schist that we have had to shore up every time we move our drills," answered Jack quietly.
"Peter A Novel of Which He is Not the Hero"
F. Hopkinson Smith
The rocks in Porquerolles and Port-Cros are similar-mica, schist, and quartz.
"The South of France--East Half"
Charles Bertram Black