Mica schist


Also found in: Thesaurus, Encyclopedia, Wikipedia.
(Geol.) a schistose rock, consisting of mica and quartz with, usually, some feldspar.

See also: Mica

References in periodicals archive ?
A number of blocks of the local green mica schist from the long disused Jersey Quarry on Holyhead Mountain are to be used for the memorial which will be erected on Newry Beach this spring.
Mica schist are green or black (Figure 2h) in color, depending on the modal percentage of graphite.
Seven holes drilled along the northerly trending contact between amphibolite and quartz mica schist in the South Area.
Here the green beryl, which is coloured by Cr, occurs within mica schist close tn its contact with quartz veins spawned by a nearby granite intrusion (Groat et al.
Once standing, the tub wall was supported by 1,500 tiebacks, long steel rods anchored to a sturdy rock layer called mica schist, or bedrock, 70 feet below sea level.
TABLE 1 Soil Groups (5) Soil Group Parent material Chandler/Talledaga Hard talcose schist and mica schist Chester Micaceous schist; white quartzite present on uplands Edgemont Quartz schist, quartzitic sandstone, quartzite conglomerate, pure quartzite Glenelg/Chester Micaceous schists Hagerstown/Duffield Limestone Highfield Metabasalt with considerable quartzite Linganore Hard slaty schist or phyllite Manor/Glenelg Thin, platty schistose rock Myersville/Fauquier Metabasalt Penn/Readington/Croton Red, Triassic-age sandstone and shale
The Patterson West project area is located over the mostly granitic Clearwater Domain, but the basement conductors interpreted form the VTEM survey and the presence of kaolinitic and hematitic mica schist in the last 35 metres of historical drill hole SAM15 indicates the presence of either a sedimentary package or a significant shear zone.
Mica schist have a paragenesis of quartz + muscovite + biotite with minor garnet, chloritoid and plagioclase, and locally andalusite porphyroblasts cutting the [S.