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.