cerussite


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cerussite

(sēr`əsīt), colorless to white or gray mineral, sometimes yellowish or greenish, transparent to opaque, very brittle, crystallizing in the orthorhombic system and occurring also in granular and massive form. It is a carbonate of lead, PbCO3, formed by the action of carbonate and bicarbonate solutions on galenagalena
or lead glance,
lustrous, blue-gray mineral crystallizing usually in cubes, sometimes in octahedrons. It is the most important ore and the principal source of lead.
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. It is an important ore of lead widely distributed throughout the world and found associated with galena and other lead minerals.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cerussite

 

a mineral; lead carbonate, PbCO3. Cerussite contains minute amounts of Ca, Zn, Sr, and Mg. It crystallizes in the orthorhombic system, forming columnar, dipyramidal, or tabular crystals. It often occurs in the form of stellate clusters of twinned or triplet crystals. It is usually found in the form of granular or sinter aggregates. A white, yellowish, or brownish gray mineral, it has a density of 6,400–6,600 kg/m3 and a hardness of 3.0–3.5 on Mohs’ scale. Cerussite is brittle. Under an electron beam it often gives off a greenish blue light.

Cerussite is a common secondary mineral in the zone of oxidation of lead deposits and occurs in association with anglesite, vanadinite, limonite, and other minerals. It is used mainly as an ore of lead and in the production of white mineral pigments. Deposits in the USSR have been found in Eastern Transbaikalia, the Altai, and Kazakhstan. There are also deposits of cerussite in the United States and Australia.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

cerussite

[sə′rəs‚īt]
(mineralogy)
PbCO3 A yellow or white member of the aragonite group occurring in orthorhombic crystals; produced by the action of carbon dioxide on lead ore.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The ROM's giant cerussite gem will be on permanent display in the new Teck Cominco Suite of Earth Sciences Galleries when it opens on Level 3.
Minute (to 1.5 mm) yellow-green distorted octahedrons and cuboctahedrons of bromargyrite have been found on white micro-crystalline drusy quartz, cerussite and plattnerite in a localized area near the portal of the Brown Monster mine.
The principal ore minerals at Roughton Gill were argentiferous galena and chalcopyrite with lesser, though occasionally valuable, amounts of pyromorphite, cerussite and malachite.
And micromounters take note: hiding in the copper, in some cases, are sharp, tiny crystals of cerussite, silver, pyromorphite, iodargyrite, and probably an unknown or two.
Numerous dealers at this show, as at nearly all major shows these days, had superb specimens of (oh, let's see) Veracruz, Mexico amethyst; Moroccan vanadinite and cerussite; Pikes Peak, Colorado microcline (and even topaz); apophyllite, stilbite, calcite, scolecite, etc.
Other minerals in the Monmonier collection include an excellent cabinet-size cluster of manganite crystals from Ilfeld in the Harz Mountains, Thuringia; a fine azurite from the Copper Queen mine, Bisbee, Arizona; another fine azurite from the Touissit mine in Morocco, accompanied by a cerussite crystal cluster from the same locality; a Tsumeb dioptase; a cabinet-size axinite-(Fe) (formerly called ferro-axinite); a very large blue zoisite (var.
Desautels, in fact, was still the Curator when the taxpayers in question donated a variety of specimens to the Smithsonian, among them, a sinhalite, a cat's-eye rubellite tourmaline, a couple of euclase crystals, several cerussite specimens, some wulfenite specimens and a few anglesite crystals.
The locality is well-known for fine examples of common secondary minerals such as cerussite, dioptase and wulfenite, and also for rarer species such as diaboleite, caledonite, bideauxite and leadhillite which represent some of the finest known examples of their species.
One of the biggest and brightest of the "American Mineral Treasures" cases at the Main Show held pyromorphite (and a single incredible cerussite) from the Bunker Hill mine, Shoshone County, Idaho.
The silver of one sample from Lucriche may derive from silver rich ores (cerussites).
anglesites, cerussites and wulfenites from Phoenixville, the pyrites and chalcopyrites from French Creek, the rutile from Parkesburg, such as the apatite-(CaF) from Cornog--while others are quite surprising, even to this Pennsylvania native, e.g.