 | George Ferdinand Becker - 1909 - 286 Seiten
...and of medium inclining to fine, evengrained texture, with feldspars up to 0.25 inch and mica to 0.1 inch. Its constituents, in descending order of abundance,...measures about 175 by 100 feet and from 10 to 20 feet in depth.Between this and the Kearney Hill quarry there is an outcrop of schist, either an inclusion or... | |
 | Thomas Nelson Dale, Herbert Ernest Gregory - 1911 - 698 Seiten
...sheets; milk-white soda-lime felspar (oligoclase), mostly kaolinized, micasized, and with calcite; biotite (black mica), some of it chloritized; and muscovite (white mica). Accessory minerals: Magnetite, apatite, allanite (rimmed with epidote), zircon. Secondary minerals: Kaolin, calcite, a... | |
 | Geological Survey (U.S.) - 1911 - 162 Seiten
...sheets; milk-white soda-lime felspar (oligoclase), mostly kaolinized, micasized, and with calcite; biotite (black mica), some of it chloritized; and muscovite (white mica). Accessory minerals: Magnetite, apatite, allanite (rimmed with epidote), zircon. Secondary minerals: Kaolin, calcite, a... | |
 | 1911 - 606 Seiten
...with cavities and black particles in parallel sheets; milky soda-lime feldspar (oligoclase-albite) ; biotite (black mica), some of it chloritized; and muscovite (white mica). Accessory: Garnet, magnetite, fluorite, apatite, and zircon. Secondary: Kaolin, epidote, chlorite, and limonite.... | |
 | Geological Survey (U.S.) - 1911 - 608 Seiten
...with cavities and black particles in parallel sheets; milky soda-lime feldspar (oligoelase-albite) ; biotite (black mica), some of it chloritized; and muscovite (white mica). Accessory: Garnet, magnetite, fluorite, apatite, and zircon. Secondary: Kaolin, epidote, chlorite, and limonite..... | |
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... biotite (black mica) some of it chloritized; and muscovite (white mica). Accessory minerals are very little magnetite, apatite, zircon, and rutile. 