hornblendic

Before we came to the North Platte, we were astonished by a ship, equalling the Great Eastern in size, even surpassing it in beauty of outline, its masts of columnar sandstone snapped by a storm, its prodigious hulk laboring in a gloomy sea of hornblendic granite, its deck-houses, shapen with perfect accuracy of imitation, still remaining in their place, and a weird-looking demon at the wheel steering it on to some invisible destruction.

The Atlantic Monthly, Volume 13, No. 78, April, 1864 Various

With respect to occurrence, the older sandy and clay slates, chlorite slates, micaceous, and hornblendic schists, particularly at or near their junction with the intrusive granite and diorite, generally form the most likely geological country for the finding of mineral lodes, particularly gold, silver and tin.

Getting Gold: a practical treatise for prospectors, miners and students

The hornblendic cement, with its iron or manganese base, produces the variegated appearance which may be seen in specimens from different localities.

Roman Mosaics Or, Studies in Rome and Its Neighbourhood Hugh Macmillan

Marble breccias are formed of angular pieces of highly crystalline limestone, united together by a siliceo-calcareous cement, containing usually an admixture of a hornblendic substance, and which is due to a particular action of adjacent masses or veins of iron ore.

Roman Mosaics Or, Studies in Rome and Its Neighbourhood Hugh Macmillan

One of these, in Georgia, in a soil composed of clay and sand produced by the decomposition in situ of hornblendic gneiss with layers and veins of quartz, "and which did not exist before the felling of the forest twenty years previous," he describes as more than 55 feet in depth, 300 yards in length, and from 20 to 180 feet in breadth.

Earth as Modified by Human Action, The~ Chapter 03 (historical) 1874

It is a large vein of the yellow sulphuret imbedded in the most extensive body of hornblendic rocks in the State.

The Resources of North Carolina: Its Natural Wealth, Condition, and Advantages, as Existing in 1869. Presented to the Capitalists and People of the Central and Northern States 1869

The gneiss, mica, slate, syenite and other hornblendic and ferruginous rocks are well decomposed and have liberated in great abundance fertilizing ingredients.

A Guide to Capitalists and Emigrants: Being a Statistical and Descriptive Account of the Several Counties of the State of North Carolina, United States of America; Together with Letters of Prominent Citizens of the State in Relation to the Soil, Climate, Productions, Minerals, &C., and an Account of the Swamp Lands of the State North Carolina Land Co. 1869

Magnetic ore occurs near Marshall also, in Madison County, and again near Fines Creek, in Haywood; in each case, having the same association of hornblendic rocks.

The Resources of North Carolina: Its Natural Wealth, Condition, and Advantages, as Existing in 1869. Presented to the Capitalists and People of the Central and Northern States 1869

They are generally trap-rock, embracing the varieties of gray, porphyritic, hornblendic, sienitic, and amygdaloidal trap, and appear to have had no labor expended upon them except the chiseling of a groove around the middle for the purpose of attaching a withe to serve as a handle.

Ancient Mining on the Shores of Lake Superior 1865

They are generally trap-rock, embracing the varieties of gray, porphyritic, hornblendic, sienitic, and amygdaloidal trap, and appear to have had no labor expended upon them except the chiseling of a groove around the middle for the purpose of attaching a withe to serve as a handle.

Ancient Mining on the Shores of Lake Superior 1865