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Updated: June 15, 2025
I ascended a lofty hill, situated about a mile and a half to the west of our encampment, and found it composed of felspathic porphyry, with a greyish paste containing small crystals of felspar; but, in the bed of the river, the same rock was of a greenish colour, and contained a great number of pebbles of various rocks, giving it the aspect of a conglomerate; but recognisable by its crystals of felspar, and from its being connected with the rock of the hill.
The surrounding country consists almost entirely of coarse grained granite, frequently enclosing large masses of reddish felspar.
These are, cornelian, rock-crystal, chalcedony, onyx, jasper, quartz, serpentine, sienite, haematite, green felspar, pyrites, loadstone, and amazon-stone. Stone for building was absent from Babylonia Proper and the alluvial tracts of Susiana, but in the other provinces it abounded.
The soil on which the apple is mostly grown is largely composed of granitic matter, and is of a sharp, sandy, loamy nature, often of a gritty character. It is usually rich in potash, the predominating felspar being orthoclase, but somewhat deficient in nitrogen and phosphoric acid. It is usually easy to work, of fair depth, and retains moisture well when kept in a thorough state of tilth.
The flexures of the gneiss are incomparably more irregular and confused than those of the quartz, and often contain flattened spheres of highly crystalline felspar, that cleave perpendicularly to the shorter axis.
And in the dusty biscuit-making place of the potters, among the felspar mills, in the furnace rooms of the metal workers, among the incandescent lakes of crude Eadhamite, the blue canvas clothing was on man, woman and child.
Some beds consist of an impalpable mud, like putty, apparently derived from the grinding down of felspar, and resembling the mud produced by the grinding action of modern glaciers. Mr.
In the little stream were many pebbles of vesicular trap, probably an amygdaloid with the kernels decomposed, but containing particles of olivine; also pebbles of a syenitic compound, consisting of quartz, hornblende, and felspar; and of compact felspar, mottled green and white, the green colour probably being due to chlorite or green earth, and they enclosed also decomposed crystals of mica and hornblende.
Of this number was the great sage Amenhetep, son of Hapi, the founder of the little desert temple of Dêr el-Medîna, near Dêr el-Bahari, who was a sort of prime minister under Amenhetep III, and was venerated in later days as a demigod. His statue was found with the others by M. Legrain. Among them is a figure made entirely of green felspar, an unusual material for so large a statuette.
At Paris, M. Hachette and M. Beudant succeeded in making tubes, in most respects similar to these fulgurites, by passing very strong shocks of galvanism through finely-powdered glass: when salt was added, so as to increase its fusibility, the tubes were larger in every dimension, They failed both with powdered felspar and quartz.
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