 | | Report (issue) | | STATE OF SOUTH DAKOTA Nils Boe, Governor MINERALOGY OF THE BLACK HILLS by WILLARD LINCOLN ROBERTS...Associate in Mineralogy Museum of Geology, South Dakota School of Mines and Technology and GEORGE RAPP...Department of Geology and Geological Engineering, South Dakota School of Mines and Technology With the Editorial...Mineralogy South Dakota School of Mines and Technology BULLETIN NUMBER 18 of the South Dakota School of...of Mines and Technology Rapid City, South Dakota PUBLICATIONS STAFF F. L. Partlo J. T. Thomas President |  | | Journal (article/letter/editorial) | | Cornwall, luxullianite, 441; 442 Scar Crag, Lake District, arsenopyrite, alloclase, glaucodot, cobaltian...Drummore, paratacamite, 547 Barra, Outer Hebrides, amphibolite assemblage of andesine, tschermakitic hornblende...'hauchecornite', 875 Verkhne Dnieprovsk, Ekaterinoslav District, Ukraine, iron meteorite, I49 Turkey (Ttirkiye)...halite, trona, 34 I Sfibren-kalaalan Eskisehir county, deerite, 25i Iraq Sinjar, Mosul, sinjarite, 643...175 Swat, Kohistan, pyroxenes, i75 Topsin, Swat district, blueschist rocks, 941 India Bombay. Nasik and |  | | Report (issue) | | PEGMATITES OF PART OF THE FOURMILE AREA CUSTER COUNTY SOUTH DAKOTA By Andrew J. Lang, Jr. and Jack A. Redden...PEGMATITES OF PART OF THE FOURMILE AREA CUSTER COUNTY, SOUTH DAKOTA By Andrew J. Lang, Jr. and Jack A. Redden...Quartz-mica schist unit............ Amphibolite unit.................. Amphibolite................. Lime-silicate........ Quartz-mica-feldspar schist unit..... Amphibolite dikes ................ Pegmatites.............. Caster County, S. Dak..............Insidp back cover Figure 1. Fourmile area, Custer County ....... |  | | Report (volume) | | Bulletin 765 GEOLOGY OF THE REGION AROUND LEAD SOUTH DAKOTA \ AND ITS BEARING ON THE HOMESTAKE ORE BODY...and mineral resources of the Black Hills of South Dakota.1 The first systematic geologic investigation...mine is at Lead (pronounced leed), in western South Dakota, in the northern Black Hills. The "hills" embrace... The principal stimulus to settlement has been mining, and this industry has built up the neighboring...403, according to the census of 1920. Most of the mining is nearer to Lead than to Deadwood, and the large |  | | Journal (article/letter/editorial) | | with its representation of mining tools clearly proclaim Montana’s mining origins. Montana’s production...published describing the occurrence, collecting, mining, and cutting of the two state gemstones. Figure...2. Granville Stuart established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal |  | | Report (volume) | | the Northern Part of the Tenmile Range, Summit County Colorado GEOLOGICAL SURVEY Prepared in cooperation...cooperation with the Colorado State Metal Mining Fund Board BULLETIN 1162-D A Geology of the Northern...Northern Part of the Tenmile Range, Summit County Colorado By MAX H. BERGENDAHL CONTRIBUTIONS TO ECONOMIC...Prepared in cooperation with the Colorado State Metal Mining Fund Board STATES GOVERNMENT PRINTING OFFICE,...gneiss____-___-____-______-_-_____---_--_----_-_--_ Amphibolite. ________________-_______---____----_-_____- |  | | Book | | be minerals. Microcline, Crystal Peak, Colorado, USA * 12 x 9x 5 om MINERALS: PRODUCTS OF A CHANGING...CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species Minerals...zeolites. Calcite (septarian nodule), San Juan County, Utah, USA * 18 x 24x Bem 14 | MINERALS: PRODUCTS...10 ct RIGHT: Round brilliant-cut white diamonds, South Africa and Canada « 2.00 ct and 3.06 ct leaves...for cutting other minerals. Tale, Mpumalanga, South Africa * 19 x 6 x 83cm Hardness 1 Hardness 4 |  | | Report (issue) | | and Ore Depostts of the Darwin Quadrangle Inyo County, California GEOLOGICAL SURVEY PROFESSIONAL Prepared... Geology and Ore Deposits ofthe Darwin Quadrangle Inyo County, California By WAYNE E. HALL and E. M. MAcKEVETT...feldspathic rock ___________ _ Alteration to amphibolite _______________ _ Geologic history _________...lead-silver-zinc district ______________ _ Geochemical prospecting ___ ._ ____________ _ Future of the district ___________________...___________________ _ Zinc Hill district ___________________________ _ Lee district _______________________________ |  | | Report (volume) | | Branch of Distribution, U.S. Geological Survey, 1200 South Eads Street, Arlington, VA 22202 CONTENTS Page...location and means of access to all the metallic mining districts in the State, as well as a large number...documented summary of the beginning of Colorado mining history. Part of his summary is given here in the...had been recently found in the Tenmile district, Summit County. In his booklet, which today would be classed...however, because it contains lists of the mines and mining districts that were active at the time in Clear |  | | Report (issue) | | Geology of the Berne Quadrangle Black Hills South Dakota GEOLOGICAL SURVEY PROFESSIONAL PAPER 297-F ... Geology of the Berne Quadrangle Black Hills South Dakota By JACK A. REDDEN PEGMATITES AND OTHER PRECAMBRIAN... Mayo Formation. __________________________ Amphibolite.-... _ __________________________ Lithologic...GEOLOGY OF THE BERNE QUADRANGLE, BLACK HILLS, SOUTH DAKOTA By JACK A. REDDEN ABSTRACT The Berne quadrangle...carbonate iron formation. Many small bodies of amphibolite were diabase dikes and sills. Many different |  | | Journal (article/letter/editorial) | | similar Precambrian base-metal deposits crops out in south-central Colorado. At Cotopaxi mineralization is...faulting. Mineralization is mainly confined to amphibolite, but biotite gneiss and nodular sillimanite schist...schist are regional rock types; the mineralized amphibolite is not a regional rock type and may have formed...separated into the following distinct stages: amphibolite formation, almost exclusively confned to the...well-defined but little-studied ore deposits in south-central Colorado is Precambrian in age. These deposits |  | | Report (volume) | | CORUNDUM DEPOSITS IN THE BUCK CREEl( PERIDOTITE CLAY COUNTY, NORTH CAROLINA BY JARVIS B. HADLEY Strategic.................... Troctolite and troctolite-amphibolite .......•.... Edeni te-amphiboli te.............corundum ......••..•.. Disseminated deposits in amphibolite •...•...•.•..•... Mineralogy..... . . . . . •...Hutchison, Ledford and Burrell prospects ..••..• South Extension prospect ....•.........••......•..•.....sections of the Buck Creek peridotite body, Clay County, N. C. . . . • . . . . . . . . . . . . . . . . |  | | Report (volume) | | ................................... ......... Zoisite ..--...------.-..-..-----..-.._---.-..--------...ARSENIDES. BISMUTHINITB. From the Rosario Mining District, Sinaloa, Mexico. W. I-I. Melville. Described...mine of the Canadian Copper Company, Sudbury, district of Algoma, Ontario. Specific gravity, 4.541 ~...From the Silver King mine, Calico, San Bernardino County, Cal. Specific gravity, 6:28. Analysis by W. H...From .Teocalli Mountain, Brush Creek, Gunnison County, Colo. Specific gravity, 7.400 at 14.5°, corrected |  | | Catalog/List | | . . . . . Cleavelandile, white, laminated; S. Dakota . . . . . . . Peristerile (Moonstone), opalescent...fluophosphate) Cleavable mass, pure; Maine or S. Dakota . . . . . . . . . . . . . . . AMETHYST-See Quartz... . . . . . . . . . . Cummingtonite Fibrous; South Dakota . . . . . . . . . . . . . . . . . . . . . ....... ... ... .... . . ........ .60 Chiastolite; South Australia; crude xl . . . ... .... . ....... . XI;...Connecticut . . . . . . . . .35 Massive, white; S. Dakota . . . . . . . . . . . . . . . . . . . . . . . |  | | Book (volume) | | Guide for Rock Hounds in the United States SOUTH DAKOTA This northwestern Great Plains state varies...In the far western counties of Lawrence, Meade, Custer and Pennington the land rises abruptly into the...rising granite mass intruded the famed Cretaceous Dakota sandstone, which underlies most of the Great Plains...continental seas were advancing from the south, the Dakota sandstone represents topset beds, wave reworked...the fascination of these pegmatites. 437 South Dakota The commercial production of minerals, principally |  | | Catalog/List | | mass in Calcite.(Dark Star Mine,Ravalli County, Montana USA) 1 x H £2.50 1x1 £4 040 BITYITE Li and Be...white cleavages in Muscovite. (Harding Mine,Taos County, New Mexico) 1x1 £3.50 1x2 £7 097 CHLOANTHITE (variety...micro's on matrix. (Getchell Mine,Humboldt Co . Nevada USA) 5mm £4 151 LEUCOSPHENITE Ba Na Ti B SiO Blue massive... About 7mm mass (Bulldog Mine, Creede, Mineral County,Colorado U.S.A) £4 439 STRACZEKITE Ca K Ba V 0...(Union Carbide Mine, Wilson Springs Garland County, Arkansas USA) 1x1 £4 1x2 £7.50 396 TORBERNITE Cu UO PO/4 |  | | Report (volume) | | Bulletin, vol. 44. New York. American Institute of Mining Engineers: Bulletin, nos. 61-72; Transactions,... 147-264. San Francisco, Cal. California State Mining Bureau: Bulletin, no. 64. San Francisco, Cal. California...Transactions, vol. 9, pts. 2, 3. Toronto, Ont. Canadian Mining Institute: Quarterly Bulletin, nos. 18-20; Journal... BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1912. 7 Canadian Mining Journal, vol. 33. Toronto and Montreal, Canada...Bulletin, nos. 19, 21. Hartford, Conn. Delaware County Institute of Science: Proceedings, vol. 6, nos |  | | Report (volume) | | ...................... 1. Rocks from Aroostook County..... ^..................'........... 2. Miscellaneous...... ; .................................. 2. Amphibolite............................................................................ Maryland and the District of Columbia.....................................1. Elliott County dike............................................... 2. Crittenden County dike..................................... 2. Crystal Falls district, Michigan.................................. . |  | | Journal (issue) | | in length were reported from the Etta Mine in South Dakota (see figure 2). and one large crystal from this...lath-likeaggregateof spodumenefrom the EttaMine, Keystone,South Dakota.Sizeis 6 x 4 cm. ExcaliburMineralCorp.specimen...Huizing, 534 I Thrasher Dr, Cincinnati OH 45247 USA Please, make checks payable to Mineralogical Almanac...U.S. Geological Survey first described the gem mining actiYities of James D. Endicott (Sterrett I 908...history of Colorado gem mining. In 1907, Endicott discoYered amazon stone in Custer County, aquamarine and rose |  | | Report (volume) | | part of the area ___________________ .__________ Custer Gneiss of McTaggart and Thompson (1967) _ _ _ _...National Park ___ _ 5 3. Custer Gneiss overlain by Skagit Volcanics ______ _ 9 4. Custer Gneiss rock types ...______________________ _ 10 5. Custer Gneiss rock types ______________________ _ 14 6. Thin-bedded chert...eastern part of the area, the oldest rocks are the Custer Gneiss of McTaggart and Thompson, a thick sequence...made up of several types of gabbro, diorite, amphibolite, ultramafic rocks, and quartz diorite that crop |  | | Journal (article/letter/editorial) | | X-ray, 312 Alluaudite, Sweden, Finland, Bavaria, S. Dakota, Rwanda, New Hampshire, Morocco, and SW AJHca,...), see MOORE (P. B.), 789 Arrojadite family, S. Dakota, Morocco, Rwanda, Brazil, New Hampshire, Connecticut...193; anal. by, 195 Aureole of Nahant Gabbro, Mass., USA, chemical mineralogy of, anal., paragenesis, metamorphism...LAWSON (R. J.), An occurrence of paratacamite in south-west Scotland, 547 Carbon dioxide-rich volatile...structures in gneiss and veins from Broken Hill, New South Wales, Australia, 779 Cheralite, India, anal., cell |  | | Book (edition) | | abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada...localities of magmatic origin (in the sequence North and South America and Greenland, then Europe, Asia, Africa...pegmatitic origin in the same sequence: North and South America and Greenland, then Europe, etc. For some |  | | Book | | of the 'Irelawney Collection of the Los Angeles County Museum of Natural History. ♦ Figures vii Foreword...Deposits of Tanzania 15 Location 16 Geology 18 Mining 20 Properties 23 Important Gems 23 Chapter 3. Ruby...Tanzania 49 Location 50 History 53 Geology and Mining Methods 55 Properties 57 ♦ ♦ ♦ vi CONTENTS...Garnets of East Africa 73 Rh.odolite of the Lindi District, Tanzania 76 Tsavorite Garnets 76 The Pyrope-...Tanzania 96 Red Dravite Tourmaline from the Narok District, Kenya 99 Uvite-Dravite Chrome Tourmaline 99 |  | | Journal (article/letter/editorial) | | tholeiitic metabasalts of upper-greenschist to amphibolite facies metamorphic grade. Three types of deposits...deposits, hosted in upper-greenschist to lower-amphibolite facies rocks, comprise massive to laminated quartz...assemblages. Central deposits, hosted in lower-amphibolite facies rocks, consist of laminated to massive...consist of banded quartz-diopside-calcite-microcline-zoisite veins. All deposits exhibit variable ductile deformation...progressively deeper crustal levels from north to south. In either case the deposits represent a continuum |  | | Book (volume) | | Furcron, Chief Geologist of the Department of Mines, Mining and Geology; on the State of Michigan by Robert...Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they...the generous assistance of many residents of that county. My special thanks are extended to Elbert H. McMacken...(Sillimanite), Zoisite and Clinozoisite, Serpentine, Copper Rhyolite, Red Corundum in Amphibolite, Pyrite,...Hiddenite crystals Hiddenite crystal Map of Pala District Clays and crystals in pocket Vanderberg Mine Pile |
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