Here may also be observed a contemporaneous vein of schorl rock in the granite, nearly two feet wide, highly inclined and very short, and not having any distinct walls.
Berger observed many blocks of Schorl rock[64] scattered on this part of the granitic plain, particularly amongst the rubbish of some old tin mines, which are here very numerous, but are now quite deserted.
Sometimes the red schorl occurs only in dendritic crystals of a bright red.
One by one, however, they were distinguished by separate names until Schorl included only Tourmaline, and shortly afterward the name Schorl was dropped altogether.
At one time the name Schorl was chiefly applied to the species.
The group of high peaks to the North-west of Everest (overlooking the Khombu Pass) is made up of these and intrusive schorl granite, and it would seem that the precipitous North-western face and spurs of Everest are the same.
Both biotite-gneiss and metamorphosed sedimentaries are crowded with dykes and sills, of all dimensions, of schorl granite or pegmatite to such an extent that this granite is frequently the predominant rock.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "schorl" in a variety of sentences. We hope that you will now be able to make sentences using this word.
