A preliminary descriptive catalogue of the systematic collections in economic geology and metallurgy in the United States National Museum - Softcover
Synopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1891 Excerpt: ...level. (40676.) (10) Selvage between ore and hanging wall, bottom level. (43697.) Seven specimens represent the Fritz Island Mine, near Reading; taken June 24, 1881:. (1) Magnetite, pyrite, and calcite. (41877.) (2) Magnetite, containing much pyrite. (41878.) (3) Impure magnetite. (41879.) (4) Foot wall. (41880.) (5) Hanging wall. (41881.) (0) Hanging wall. (41882.) (7) Rock, from bet.veen the ore bodies. (41883.) Eleven specimens represent the Frencb Creek Mine: (1) Magnetite, pyrite, auil calcite. Shaft No. 1. (41907.) (2) Maguetite, micaceous, pyrite undergoing decomposition. SbaftNo. 1. (41894.) (3) Magnetite, pyrite, and calcite. Shaft No. 1. (41895.) (4) Granitic rock, hauging wall. Shaft No. 1. (43611.) (5) Calcite, inclosing granite rock, hanging wall. Shaft No. 1. (43610.) (6) Trap rock, in west wall. (43612.) (7) Quartzite, east wall. Shaft No. 1. (43856.) (8) Granitic rock,foot wall. Shaft No. 1. (43609.) (U) Magnetite, containing calcite, and pyrite. Shaft No. 2. (41908.) (10) Magnetite, pyrite crystals, octahedrons, chloritic material. Shaft No. 2. (40689.) (11) Hanging wall. Shaft No. 2. (40690.) Three specimens represent the Barto Mine, at Barto, taken July 5, 1881: (1) Magnetite, containing pyrite. (41892.) (2) Granite rock, showing slickensides, wall rock. (41893.) (3) Epidoterock. (40686.) Five specimens represent the Hopewell Mine, at St. Mary's, taken Julv 13, 1881: (1) Magnetite, containing octahedral crystals. (41897.) (2) Magnetite„containing pyrite, and calcite. (41898.) (3) Quartzite, foot wall. (41938.) (4) Granitic rock, coarse; wall rock. (41940.) (5) Trap rock. (41939.) (1) Limouite, pipe ore. Frank Brownback Mine, Long Swamp. October 18, 1880. (40709.) (2) Magnetite, pyrite, decomposed silicates; immediately below the lim...
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