 | | Book | | Minerals: 119, British Geological Survey; 131, China Clay Museum, Cornwall; 97, Shane Dohnt; 101, by permission...yellow from the mineral lin1onite. Kao lin - white clay INTR ODU CTI ON 7 Above: Insects from tens of...geology book, the field to explore rocks and n1inerals De Re Metallica (On things metallic). and the story...like North America's Juan de Fuca, is bigger than a country such as Spain. It seems almost unimaginable... . North American Plate Eurasian Plate / Juan de °' Fuca Plate ' I' Pacific Plate Pacific Plate |  | | Book | | Minerals: 211, British Geological Survey; 223, China Clay Museum, Cornwall; 189, Shane Dohnt; 193, by permission...Copper and gold were both too soft to geology book, De Re Metallica (On Landscape, Understanding Rocks...mantle, material is Juan de Fuca, is bigger than a country such as Spain. It seems almost unimaginable...• --e North American Plate Eurasian Plate Juan de North American Fuca Plate Plate Pacific Plate...cemented together into sandstones (right) like the de Chelly beds of the buttes in Utah's famous Monument |  | | Report (issue) | | earliest Jesuit missionaries sent back reports of la roche verle ( chrysocolla vein) seen running out...Part II, Chrysocolla) in a vein at Copper Harbor-"la roche verte". Several Jesuit priests mention copper...cobbles 2. Secondary igneous species: alteration of la and b by escaping volcanic fluids during cooling...dolostone) chert evaporites Mineral quartz quartz clay minerals, especially illite and kaolinite calcite...the Precambrian of Michigan. 20 Clays Michigan clay deposits include several unconsolidated Pleistocene |  | | Book | | Co. quarry at Alabaster is one of the largest quarries in the state. PHOSPHORITE Phosphorites are marine...goethite, hematite, minor magnetite, manganese oxides clay minerals, minor carbonates, quartz Hard hematite...lepidocrocite lizardite malachite manganite marcasite melanterite microcline meta-autunite metatorbernite metatyuyamunite...weathered copper ore in a vein at Copper Harbor "la roche verte" - had reached Quebec and France. Jesuit...and sulfur crystals. Except for a few working quarries in the Southern Peninsula, most of the mineral |  | | Journal (volume) | | truncated alluvial fan 80-81 8. A, Photo of Calearth clay deposit. B, Photo of Divide Mining Company 6. ...Nonmetallic mineral commodities Asbestos Barite Clay Feldspar Fluorite Garnet Limestone, including dolomite...Photo of truncated alluvial fan A, Photo of Calearth clay deposit. B, Photo of New Sutherland Divide Mining... T) T3 "C C3O303O30303O33 tf tf pj « la o C3 3 O C J) o ^J CC HH a m ^ 1-4 3...fragments and stringers mixed with a talcose and clay gouge and associated siderite and hematite, 54° |
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