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If the mineral whose specific gravity is sought is an incrustation on a rock, or a mixture of a number of minerals, or would break to pieces in the water, the specific gravity is by this method of course unattainable, and other data must be used. The Comparative Hardness. The next characteristic of the mineral to be ascertained is the comparative hardness.
I remember only a plate of the Duke of Wellington, at three stages of his life; and there were minerals, delved, doubtless, out of the hearts of the mountains, upon the mantel-piece. The chairs were of an antiquated fashion, and had very capacious seats.
The guest of honor sipped ginger ale and nibbled at canapés while he was presented with his gifts: A volume of Kipling's Jungle Tales, a Spitz Junior Planetarium, and a build-it-yourself kit containing parts for a geiger counter and an assortment of radioactive minerals to identify.
There is at the Warm Springs a thriving mill for crushing and pulverizing barites, known vulgarly as heavy-spar. It is the weight of this heaviest of minerals, and not its lovely crystals, that gives it value.
The spring which keeps the whole of this vast array of bathing appliances going yields three hogsheads per minute, and issues from the earth at a temperature of 117° Fahr. The chief constituents of the waters are calcium sulphate, sodium sulphate, magnesium chloride, calcium carbonate, and sodium chloride, and there are traces of other minerals. The Abbey Church.
"Apparently there were large-scale mining operations carried on there once; the world is rich enough in minerals and mining them is very simple. But water came only from expensive extraction processes and I imagine most of the food came from offworld. Which was good enough until the settlement was forgotten, the way a lot of other planets were during the Breakdown.
A member of the Ottawa government, who was on his way to the Governor-General's ball at Halifax, informed us that this country is rich in minerals, in iron especially, and he pointed out spots where gold had been washed out. But we do not covet it.
A bluish grey or pale brown, compact, heavy, homogeneous stone, with an angular, uneven, earthy fracture; viewed, however, under a lens of high power, the fracture is seen to be distinctly crystalline, and even separate minerals can be distinguished. A stone of the same kind with the last, but streaked with numerous, parallel, slightly tortuous, white lines of the thickness of hairs.
In 1863 and 1866 he had been among the Nagelflüh of Northern Switzerland, studying the puddingstones and breccias. He saw that the difference between these formations, in their structural aspect, and the hand-specimens in his collection of pisolitic and brecciated minerals was chiefly a matter of size; and that the resemblances in form were very close.
M-m-m!-'Liens on Mines' 'Clause Inserted in Patents' 'Affidavits Taken Without Notice to Opposing' oh, it must be here it's GOT to be here!" She was running a somewhat sticky forefinger slowly down the index pages. "It isn't alphabetically arranged, which I consider sloppy of Mr. Copp. Ah-h! 'Minerals Discovered After Patent Has Issued to Agricultural Claimant' two hundred and eight.
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