Definition of mica schist in US English:

mica schist


  • A metamorphic rock that contains quartz and mica and resembles slate in being easily split.

    • ‘Further west, white and pale blue sapphires are found in mica schist enclosed by gray-brown granite near Sweetwater Station.’
    • ‘Some of the migmatites have a remarkable fragmental texture, consisting of pebble - to boulder-sized fragments of graphitic mica schist in a cordierite granite matrix.’
    • ‘The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist.’
    • ‘Corundum occurs as an accessory mineral in some metamorphic rocks, such as mica schist, gneiss, and crystalline limestone.’
    • ‘The subsurface investigation indicated that there was a relatively thin layer of fill - between 5 and 12 ft thick and consisting of mica schist and schistose gneiss - overlying very competent rock.’


mica schist

/ˈmīkə SHist/