augen schist

augen schist

[′au̇·gən ‚shist]
(petrology)
A mylonitic rock characterized by the presence of recrystallization.
References in periodicals archive ?
The quartz augen schist and andalusite biotite schists are generally stronger, but uniaxial compressive strengths are still low, ranging from 10.
All three holes intersected interbedded units of massive grey aphyric ryholite and intermediate to felsic tuffaceous rocks and bottomed in K-feldspar-quartz augen schist.