This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1876 edition. Excerpt: ... the hexakis or six-faced octohedron, weighed 944 grains, and had a sp. gr. of 3-49. Another was sent to him in August, 1860, which had been found in the Calabash Creek by a digger as far back as 1852. Diamonds were found by the gold diggers on the Mudgee Diamond Diggings in 1867, but were not ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1876 edition. Excerpt: ... the hexakis or six-faced octohedron, weighed 944 grains, and had a sp. gr. of 3-49. Another was sent to him in August, 1860, which had been found in the Calabash Creek by a digger as far back as 1852. Diamonds were found by the gold diggers on the Mudgee Diamond Diggings in 1867, but were not especially worked until 1869. The diamonds were obtained from outliers of an old riverdrift which had in parts been protected from denudation by a capping of hard compact basalt. This drift was made up mostly of boulders and pebbles of quartz, jasper, agate, quartzite, flinty slate, silicified wood, shale, sandstone, and abundance of coarse sand mixed with more or less clay. Many of the boulders are remarkable for the peculiar brilliant polish which they possess. The principal minerals found with the diamond are gold, garnets, woodtin, brookite, magnetite, ilmenite, tourmaline, zircon, sapphire, ruby, adamantine spar, barklyite, common, and a peculiar lavender-coloured variety of corundum, quartz, topaz, magnesite and nodules of limonite which had been set free from an impure magnesite, black vesicular pleonaste, spinel, ruby, and osmo-iridium. The largest diamond found weighed 16-2 grains, or about 5f carats. The average sp. gr. was 344, and the average weight of a large number of those obtained was but 0-23 carat. (For further particulars, see paper on the Mudgee Diamond Fields, by Professor Thomson and Mr.4 Norman Taylor, in the Trans. Roy. Soc. N.S.W., 1870.) The total number found has been stated roughly at about 6,000; the number also from Bingera must be nearly as many--in all, say, 10,000 at least. In colour they vary from colourless and transparent to various shades of straw, yellow, brown, light-green, and black. One of a rich dark-green...
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Add this copy of Minerals of New South Wales to cart. $53.62, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
Add this copy of The Minerals of New South Wales to cart. $56.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
