One of the mysteries of the English language finally explained.
A metamorphic rock containing quartz and mica which resembles slate in being easily split.
- ‘The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist.’
- ‘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.’
- ‘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.’
- ‘Further west, white and pale blue sapphires are found in mica schist enclosed by gray-brown granite near Sweetwater Station.’
- ‘Corundum occurs as an accessory mineral in some metamorphic rocks, such as mica schist, gneiss, and crystalline limestone.’
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