 | | Report (volume) | | minerals ___________ _________________ 8 8 Psilomelane _______________ __________________ Hausinannite...__________________________.,_______ II. Nodular psilomelane in botryoidal clusters: A, Large elongate cluster..._________________________ III. Rodlike forms of psilomelane: A, Radiate cluster of smooth rods, some of which...mine, Va_____________________ , IV. Nodular psilomelane attached at base to a thin plate of ore: A, From...Rutledge mine, Tenn_ V. A, Section of a nodule of psilomelane the interior of which has been broken into polygonal |  | | Report (issue) | | showing an intimate mixture of brown iron oxid.e, psilomelane, and manganite. Cliff prospect, Craig County;...Polished specimen showing an intimate mixture of psilomelane and flbrous brown iron oxicle. Nye Cove prospect...X'rederick Oounty 60 XVIII. (A) X'ossils in psilomelane, Bonnet Ilill mine, Shenandoah County; (B) Manganite...having a rad.iate fibrous structure, embeclded in psilomelane. MineralRidgemine ........ 64 XIX. Map of the...North cut of Stange mine, Giles and Bland counties, in August, f918; (B) East face of north cut of Stange |  | | Report (volume) | | General features ____________________________ Psilomelane ______________________________ Hausmannite__________...Development work____________________________ Open-cut work______ __ _ __________ _ Sluicing methods___...Continued. Independence County Continued. Grubb Cut mine_________________ _ Rogers inine__ __ Polk Southard...showing an intimate mixture of hausmannite and psilomelane in a roughly zonal arrangement X ILLUSTRATIONS...Creek; C, Hand mining by pick and shovel in open cut at Cutter mine__________________XIV. A, Washing and |  | | Report (issue) | | ore to loading platforms on the Northern Pacific Railway at Philipsburg ranges from 1 to 3 miles. GEOLOGY...southward (PI. VII). Many eastward-trending fractures cut the sedimentary rocks and the granodiorite, but apparently...True Fissure vein, which dips steeply south, is cut off by the contact fault, beyond which it presumably...a nearly horizontal plane that branches from the main fracture. PHYSIOGRAPHY. For some distance north...rocks and are succeeded at Tower and Hasmark by the main mountain slope, composed of granodiorite. The foothills |  | | Report (volume) | | ......... Pence diagram showing distribution of main ore zones on Baker tract, Gap Mountain.... III ...district the commonest manganese mineral is psilomelane, but pyrolusite and wad occur in smaller quantities...first World War a few tons of it was produced. The main deposit on Gap Mountain and 199 200 STRATEGIC...the main ridges are held up by the Clinch quartzite, the most resistant formation of the region; lower...held up by sandstones of the Helderberg group. The main valleys are excavated in more easily eroded rocks |  | | Report (volume) | | oxides containing about 140,000 pounds of cobalt. The main cobaltiferous manganese deposits are in (1) the...that the cobalt-bearing manganese deposits of this region could be worked commercially for their manganese...MANGANIFEROUS CHERT OF THE KNOX DOLOMITE. View of open cut at the Gibson mine, Floyd County, Ga., showing steeply...lithiophorite (a hydrous lithium-manganese aluminate), psilomelane (which contains essential barium), cryptomelane...Rock Run area, Ala. and Ga.: W . C . Pope No . 1 cut ....... 2.28 Lithiophorite . 4.84 Lithiophorite |  | | Report (issue) | | -__-_____-____-_______-_-_____________.____ Buenavista region (4)______________________________________ 251...__-_-__ 6. Chemical analysis of a sample of psilomelane from the Talamantes district.________----___...amounts in 13 other States. The deposits are of four main types: (1) fissure deposits, which consist of manganese...INFLUENCING PRODUCTION OF MANGANESE ORE IN MEXICO The main economic factors influencing the production of manganese...high-silica ore with low-silica ore from the Dinamita region (Durango 2), with the result that the ore from |  | | Report (issue) | | Prospect The prospect consists of a 25 foot wide open cut on a steep slope above Rock Creek The ore minerals...of Mines, 1950) noted hematite, psilomelane, and pyrolusite in the cut, and described several prospect...shafts, up to 8 feet deep, on the slope below the main cut. These shafts are no longer visible. A channel...part of the Chilhowee group, and consist of an open cut about 90 feet long with a 15-foot-high face. An 11-foot-long...restricted to fractures. Deposits of this type in this region, described by Chance (1909) and Keith (1907) are |  | | Book (volume) | | DEPOSITS. 341 Besides the cobalt-nickel veins, the region also contains veins of carbonate spars free from...district of Schneeberg, in Saxony, a mountainous region 1,300 to 1,600 feet (400 to 500 m.) above the sea...communications by H. Trb'ger, are divided into two main groups, an older and a younger. The older veins...the pitchblende. ores extend for 850 foot cross-cut, although the vein itself had, above the level...Haileybury, in Ontario, Canada, in 1903, while a railway cutting was being excavated. 2 22. VEINS OF HYDROSILICATE |  | | Report (issue) | | Hiriart Mountain 23 6. Section through west tunnel, North Star mine 7. 8. 9. 10. 11. 12. 13. 14... 49 49 50 52 55 55 56 57 59 48-49 Spodumene, cut-stones A, Photo of fine-grained lepidolite. B, very...49 49 48-49 A, Tourmaline, cut stones. B, Tourmaline, bi-colored cut stones 10. 12. Fig. spodumene...geologist, California Division of Mines. map of main cut. Xaylor mine Photo of fracture-controlled replacement...Plan of main workings, Katerina mine Section through adit, 101 Molino mine 35. Geologic map of main workings |  | | Journal (issue) | | 1919-1920 the Mining Bureau was organized into four main geographical divisions, with the field work delegated...Sacramento Valley and the lavas of the Lassen Peak region. The southwestern corner of the county lies in...nuts, garden products for home use, forest products cut on farms, dairy products, Value of horses, mules...been cut because of the lack of railroad transportation in the county. few semiportable mills cut lumber...(136,000 acres) and in the Middle-Eel-Yolla-Bolly region (77,086 acres). They also maintain camp-sites in |  | | Report (issue) | | Geology—Lemhi Pass region, Idaho and Montana. 2. Thorium ores—Lemhi Pass region, Idaho and Mont. I....Creek, the area consists of two mountain masses. The main mountain mass rises to the east to the Continental...This separate mountain block is divided from the main part of the range by a broad lowland, whose northern...shallow-water features such as mud cracks, ripple marks, cut-and-fill structures, and mud-chip breccia are common...Little Dry Gulch. The upper part of the Gunsight is cut out by faulting. The greater part of the Gunsight |  | | Report (issue) | | 12E 09 32-18-234 111-07-1bw P8 CUV MU AGV OMEGA TUNNEL PdV PImA ZN AUV 185 15E 24 31-51-224 11U-4b-lOw...CU MAIN COMMOD A AU OCCURRENCES) OR POTENTIAL PRODUCTISI: Nt AG PAGE 0002 POTENTIAL A MO MAIN ORE...SCHALLER, W.T., 1936, MINERAL RESOURCES OF THE REGION AROUND BOULDER DAM: U.S. GEOL. SURVEY BULL. B71...OF K-A AGES OF TERTIARY ROCKS FROM THE LAKE MEAD REGION, NEVADA-ARIZONA: GEOL. SOC. AMERICA BULL., V. 83...PRODUCER(PAST OR PRESENT): MAJOR PRODUCTS.. WA AU AG CU PB MAIN COMMOD A MINOR COMmOD A MO BI OCCURRENCE(S) OR POTENTIAL |  | | Report (issue) | | Topographic maps are available for all of the Black Hills region and may be purchased from the United States Geological...Fluorite Matlockite Lepidocrocite Manganite Psilomelane Goethite (Limonite) Magnetite Chromite Chrysoberyl...in length from the wall on the north side of the tunnel entrance to the Greene pegmatite three miles east-northeast...the most abundant amphibole of the Black Hills region. It is an especially important constituent of the...brownish red when viewed from the ends, have been cut from transparent andalusite found onefourth mile |  | | Report (issue) | | -__-________--_ Chickering mine.____________________ Raymond region.________________________ Corson mine_______----________----_..... . . .. Eight-ball _____ ... __ ...... Evans: Main pegmatite. . ... ... Fletcher.. ____ 40 . Tr............................ 10-50 No. 10, Smith: Main.......................... No. 18..................end of the lower, or southern, open cut [1] there is a large tunnel or room [2] 50 feet long with deep...about 50 feet higher and to the west, where an open cut [4] 30 feet long i < APPROXIMATE SCALE 0 i i |  | | Journal (volume) | | and in the northern part of the state a large tunnel kiln was placed "on stream" for the production...chemical plant. Prepared a report on geology of Poe Tunnel for Department of Water Resources. Suggested areas...mining claims. Correlated geology of Poe Tunnel with tunnel-driving rates. Advised gold miner on sampling...Shoshone-Tecopa quadrangles, in the southern Death Valley region, have deposits of lead, zinc, silver, gold, talc...unmapped areas of the Klamath Mountains. This is a region of rich mineral potential, about which there is |  | | Report (issue) | | Description of the pegmatites _______ Extent of the main pegmatite underground _________________________...Barney mines, Grafton, N. H. Geologic map and plan of main underground workings, Ruggles feldspar mica mine...1803. From 1863 to 1869 the mica deposits of this region were the most productive in North America, and...few mines could be operated at a profit. No clear-cut answer can be given to the question of how much mica...and F. H. Main (1944-45). In addition to working in the field, K. S. Adams and F. H. Main redrafted and |  | | Report (issue) | | the Mineral Resources series for over 8 years. The main reason for this long interval between issues has...... No 5 shoot . . . . . . . . .... .... Devons Cut workings .... .... .... Mount Brockman group ......Mount Conspicuous Miscellaneous prospects within the main group .... . . . . . . . . General information ...... ................ .... Assay results. Devons Cut workings .... Assay results. M.C. 171. Braeside ...appendices of additional information not included in the main text. The geographic grouping into gold and mineral |  | | Book | | Contents Therapeutic Uses Beryl, of Emerald and Germany, Eyes, 76 77 Spain, Childbirth, and Fertil78...Inspecting Algeria, 328 Rough, Inclusions in Cut Gems, Chatoyant Beryls, Angola, 361 329 Antarctica...West Africa 445 Ghana, Inner Somali 443 Germany, Terms, 616 491 General 500 and Locality Index...those years by Dr. a of persons and San by the main Diego library. The in many the text and illustrations...Additionally, contributed F. to the I wish Germany; WI; Allen British following who in large work: |  | | Journal (issue) | | better. $3.00 lb. Minimum 10 lbs. 2 . Brilll•nt Cut Dl•monda. Commercial quality. 2¼mm about .04 pt....Swap and Sale Show. Sears Roebuck parking lot. 436 Main St., Hackensack. NJ. 10-6. Sidney Kurtin, 641 N...Dealers Inquiries Invited TOOL CO~f=O~A,ION 24063 W. MAIN ST.. BARSTOW. CA92311 Plloae: (714) 253-7514 GEMS...Lepidolite (Yellow) Chalk Nephri te Amazon i te Psilomelane Hydromagnesite Trana Pisolitlc Limestone Thomsonlte...O. Box 763, Cheyenne, Wyoming 82001. AUSTRALIA CUT OPAL SPECIALS NO. 1 - Mixed Opals Three different |  | | Report (issue) | | Pendant: almandine garnet cabochon set in silver. Cut and set by Jim Robertson, New Liskeard, Ontario....muscovite sheet from the largest crystal he found in the main dyke, Purdy mine, 1942. Photograph by N.B. Davis...these deposits are accessible only by boat. The region north of the Ottawa River between Gatineau (Hull)...occurrences are accessible by automobile from the main highways and from secondary roads branching from...acknowledged. 1 COLLECTING ALONG THE ROUTE The main collecting route is from Ottawa to North Bay, Ontario |  | | Journal (volume) | | American battery industry may be divided into three main groups : 1) the assemblers of batteries, 2) the...Belgium (1946-1947) France (1938-1939, 1946-1947). Germany (1938-1944) Great Britain (1943-1947) Rumania..."talc" used in the battery industry consists in the main of two general types: 1) steatite £E 2 Mg 3 (Si03)4)...of Inyo County. Some of the silver mined in this region finds its way directly into the lead antimony grids...formation, and is an excellent marker bed through the region. The Tehama formation attains a thickness of approximately |  | | Report (volume) | | : Geology of D4rjijimr and Western Duars. Salt- region of Ron&t, Trans- Indue. 1876 (price 3 Rs.) ; Pt...Masnlipatarn. Carnatic. Ft. 3, 1880 (price 2 Rs. ) Coasted Region of Ooddvarl ;<• : Uisirict ( 8 Y*fc Vok Ye®...price 2 Us.) i Geological Structure of Obiticbvm region-' A Il&hbiind in north v\c«t of Harm of Kwchb (Ecology... Part #. Mohpani coalfield. Pyrolusite with Psilomelane at Gosalpur, Jabalpur district. Geological reconnaissance...portion of that period. Useful minerals of Arv&li region. Correlation of Gondwana flora with that of Australian |
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