diorite's Usage Examples:

The nickel ore of Sweden is magnetic pyrites, containing only a very small percentage of nickel, and generally occurs in diorite and greenstones.

- The ancient or plutonic igneous rocks (including granite, syenite, diorite, gabbro, porphyry, porphyrite, norite retinite) appear at various points of the two previously described regions.

24), but more usually grinders blocks of quartzite sandstone (26-34), and occasionally Df diorite (Q.

A diorite statuette, referable by its style and inscription to Dynasty XIII.

The axis along which they have been elevated runs north-east and south-west, and on either flank a series of " green rocks " appears, consisting of altered amygdaloidal andesitic lavas, intrusive dolerites, coarse gabbros and diorites, and at Beagh-beg and Creggan in central Tyrone ancient rhyolitic tuffs.

Staffordshire, the diorites of Warwickshire, the phonolite of the Wolf Rock (to which he first directed attention), the pitchstones of Arran and the altered igneous rocks near the Land's End were investigated and described by him during the years1869-1879in the Quarterly Journal of the Geological Society and in the Geological Magazine.

Magnetite is a mineral of wide distribution, occurring as grains in many massive and volcanic rocks, like granite, diorite and dolerite.

Meanwhile (1877-1881) the French consul, de Sarzec, had been excavating at Tello, the ancient Lagash, and bringing to light monuments of the pre-Semitic age, which included the diorite statues of Gudea now in the Louvre, the stone of which, according to the inscriptions upon them, had been brought from Magan, the Sinaitic peninsula.

Besides huge masses of old schists and sandstones, the range contains extensive limestone, marble, diorite, basalt and porphyry formations, while granite prevails on its southern slopes.

Curacao consists of eruptive rocks, chiefly diorite and diabase, and is surrounded by coral reefs.