In the north of Bundelkhand the prevailing rock is gneiss and quartz.
Everywhere granite, gneiss, or other primitive rocks, show themselves.
The outside of the walls is of red sandstone, but their interior of gneiss; it was garrisoned by one company of artillery.
Here and there are mixtures of schist, gneiss, and porphyry.
Here he found the gneiss ground down as if by ice coming from the east.
The southern parts of this range of mountains are composed of gneiss and granite.
The rocks known as gneiss and schist are readily bored and are considered fair water bearers.
My ground was on the gneiss side of the geological division.
The cobalt ores at these localities occur with pyrites and chalcopyrite as bands in gneiss.
Come,” I said, “let us go back till we find the joining of the gneiss and granite.
1757, from German Gneiss "type of metamorphic rock," probably from Middle High German gneist "spark" (so called because the rock glitters), from Old High German gneisto "spark" (cf. Old English gnast "spark," Old Norse gneisti).
A highly foliated, coarse-grained metamorphic rock consisting of light-colored layers, usually of quartz and feldspar, alternating with dark-colored layers of other minerals, usually hornblende and biotite. Individual grains are often visible between layers. Gneiss forms as the result of the regional metamorphism of igneous, sedimentary, or other metamorphic rocks.