United States or Taiwan ? Vote for the TOP Country of the Week !
Beneath these wild and craggy fortresses of nature a shining stretch of beach had formed itself, on which the fine white sand, mixed with crushed felspar, sparkled like powdered silver. On the left-hand side of this beach could be distinctly seen the round opening of the cavern to which Valdemar Svensen directed their attention.
Then there are many varieties of this stone, and others springing out of granite, as quartz rocks and felspar, and some sandstone mixed with quartz. Across our path we observed many traces of wild oxen, and a few were seen with their immense horns. Birds and reptiles were rare, and the lizard not so frequent as before.
It no more forms an independent stratum in the New Continent, than in the Pyrenees and the Alps. At the Rincon del Diablo, between Mariara and Hacienda de Cura, and at Chuao, it is coarse-grained, and contains fine crystals of felspar, 1 1/2 inches long.
These spheres are disposed in layers parallel to the foliation of the gneiss: and are the result of a metamorphic action of great intensity, effecting a complete rearrangement and crystallization of the quartz and mica in parallel planes, whilst the felspar is aggregated in spheres; just as in the rearrangement of the mineral constituents of mica-schists, the alumina is crystallized in the garnets, and in the clay-slates the iron into pyrites.
Thus, one day the lad declared himself unable to name two stones set before him, felspar and quartz, and when his instructor broke into angry impatience he turned sullenly away, exclaiming that he was tired of geology. 'Tired of geology? cried Mr. Gunnery, with flaming eyes. 'Then I am tired of you, Master Peak! Be off, and don't come again till I send for you! Godwin retired without a word.
One, named Einerguendi by Brown, consisted of compact felspar, coloured green by chlorite, with grains of quartz and acicular crystals of felspar.
The bottom now rose sensibly, and we soon arrived at long circuitous slopes, or inclined planes, which took us higher by degrees; but we were obliged to walk carefully among these conglomerates, bound by no cement, the feet slipping on the glassy crystal, felspar, and quartz. The volcanic nature of this enormous excavation was confirmed on all sides, and I pointed it out to my companions.
The only remarkable feature on the remainder of this line is Stony Range, distant from Bathurst fourteen miles. It is a ridge of high ground which traverses the country from north to south and terminates on the Fish river. The road crosses it at the very lowest part, and where the rock consists of a dark grey felspar with grains of quartz.
Looking over the parapet, Graham saw that beneath was a wharf under yet more tremendous archings than any he had seen. Three barges, smothered in floury dust, were being unloaded of their cargoes of powdered felspar by a multitude of coughing men, each guiding a little truck; the dust filled the place with a choking mist, and turned the electric glare yellow.
The talus now narrowed; the side-walls of dark trachytic blocks pinching it in. At this grisly hour they showed the quaintest figures towers and pinnacles, needles and tree-trunks, veiled nuns and monstrous beasts. Amongst them were huge bombs of obsidian, and masses with translucent, vitreous edges that cut like glass. Most of them contained crystals of felspar and pyroxene.
Word Of The Day