 The rocks in which the diamond occurs in Brazil are either a ferruginous quartzose conglomerate, or a laminated granular quartz called Itacolumite. The latter rock occurs in the Urals, and diamonds have been found in it ; and it is also abundant in Georgia...  Manual of Mineralogy - Page 81by James Dwight Dana - 1855 - 432 pagesFull view - About this book
 | Charles Knight - Encyclopedias and dictionaries - 1866 - 588 pages
...ferruginous quartzose conglomerate, or a laminated granular quartz called Itacolumite. The latter rock occurs in the Urals, and diamonds have been found...Carolina. In India the rock is a quartzose conglomerate. In moat instances diamonds are obtained from alluvial washings. In Brazil the sands and pebbles of... | |
 | Charles Knight - Encyclopedias and dictionaries - 1867 - 630 pages
...ferruginous quartzose conglomerate, or a laminated granular quartz called Itacolumite. The latter rock occurs in the Urals, and diamonds have been found...Carolina. In India the rock is a quartzose conglomerate. In most instances diamonds are obtained from alluvial washings. In Brazil the sands and pebbles of... | |
 | James Dwight Dana - Mineralogy - 1876 - 458 pages
...electricity when rubbed, which is not afforde by other gems unless they are polished ; and by the prac ticed ear, by means of the sound when rubbed together. Obs....Georgia and North Carolina. In India, the rock is a quartzo&e conglomerate. The origin of the diamond has been a subject of speculation, and it is the... | |
 | James Dwight Dana - Mineralogy - 1879 - 496 pages
...laminated granular quartz, called itacolumyte ; or a ferruginous quartzose conglomerate. The itacolumyte occurs in the Urals, and diamonds have been found...the rock is a quartzose conglomerate. The origin of tho diamond has been a subject of speculation, and it ia the prevalent opinion that the carbon, like... | |
 | Edward Balfour - Asia, Southeastern - 1885 - 1210 pages
...conglomerate, or a laminated granular quartz called itacolumite. The latter rock occurs in the Arals, and diamonds have been found in it ; and it is also...' In India, the rock is a quartzose conglomerate. Mr. Ball tells us that there are diamond mines in various parts of Bundelkhand, but the principal are... | |
 | Edward Balfour - Asia, Southeastern - 1885 - 1224 pages
...conglomerate, or a laminated granular quartz called itacolumite. The latter rock occurs in the Arals, and diamonds have been found in it ; and it is also...Georgia and North Carolina. In India, the rock is a quartzoae conglomerate. Mr. Ball tells us that there are diamond mines in various parts of Bundclkhand,... | |
 | Edward Balfour - India - 1885 - 1216 pages
...conglomerate, or a laminated granular quartz called itacolumite. The latter rock occurs in the Arals, and diamonds have been found in it ; and it is also abundant in (ieurgia and North Carolina. In India, the rock is a quartzose conglomerate. Mr. Ball tells us that... | |
 | Josiah Wright Matthews, Eric Rosenthal - Diamond mines and mining - 1887 - 568 pages
...considerable height on the mountainous table-land." Dana says: "The original rock in which diamonds are found in Brazil appears to be either a kind of laminated...it is also abundant in Georgia and North Carolina, where diamonds have also been found, while in India the rock is a quartzose conglomerate." The following... | |
 | Josiah Wright Matthews, Eric Rosenthal - Diamond mines and mining - 1887 - 580 pages
...considerable height on the mountainous table-land." Dana snys : "The original rock in which diamonds are found in Brazil appears to be either a kind of laminated...found in it, and it is also abundant in Georgia and Xorth Carolina, where diamonds have also been found, while in India the rock is a quartzose conglomerate."... | |
 | James Dwight Dana - Mineralogy - 1887 - 542 pages
...reported from Idaho, Arizona, Montana; also from the drift in Waukesha Co., "VVis., one of 15 carats. diamonds have been found in it; and it is also abundant in Georgia and North Carolina. According to Genth, the auriferous sands in N". Carolina, affording the diamond with zircons, monazite,... | |
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