 | | Report (volume) | | BULLETIN 450 MINERAL RESOURCES OF THE LLANO-BURNET REGION, TEXAS WITH AN ACCOUNT OF THE PRE-CAMBRIAN GEOLOGY........................ 14 Schists and gneisses (Llano series).................................. . 14 Divisions... ILLUSTRATIONS. Page. PLATE I. Geologic map of Texas............................................ 7 II...economic map showing locations of Burnet and Llano quadrangles, Texas.........................................Economic and geologic map of I/lano quadrangle, Texas........ In pocket IV. A, Assimilation of schist |  | | Report (issue) | | which have been formed to exploit them. WASHINGTON COUNTY. AMERICAN MOLYBDENUM COMPANY'S PROPERTY. Location...deposit is situated on the south slope of a gentle hill 500 or 600 feet high, overlooking the stretch of...Molybdenum Company. HANCOCK COUNTY. The known deposits of molybdenum in Hancock County lie along the north and...high, known as Catherines Hill, has been prospected to some extent. The hill shows several benches with...to the top of the hill. Molybdenite is said to be found also at the foot of the hill. It occurs in flakes |  | | Journal (issue) | | length of arsenolamprite in matrix from Alacaran Mine (Pampa Larga, Copiapo, Chile). All the specimens...Precious Stones report stated that the Himalaya Mine was brought into notice in 1898 by Mr. Charles Russell... A. E. Heighway who had operated the tourmaline mine? And how did this lead to the work by the Himalaya...well-earned since he was 6 foot, 3 inches in height (USA passport app Iication 1921 ). As a canoer and sail...as living in Vandervilt Township, San Bernardino County, CA. His Mineral Industry report of 1900 on California |  | | Report (volume) | | North Carolina.. .Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota... .Dr. A. G. Leonard, Grand Forks..........Mr. George H. Ashley, Washington, D. C. Texas............Dr. William B. Phillips, Austin. Vermont...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Report (issue) | | Austin Austin, Texas 78712 JOHN T. LONSDALE, Director Report of Investigations — No. 42 Texas Gemstones...OFECONOMIC GEOLOGY The University of Texas at Austin Austin, Texas 78712 JOHN T. LONSDALE, Director —...— No. 42 Report of Investigations Texas Gemstones By Elbert A. King, Jr. February 1961 — — — Second...gemstones Cabochon gems Faceted gems Tumbled gems Texas gemstones Amber Augite Beryl Celestite Diamond Epidote...Illustrations 1. Typical crystal form of three common Texas gemstones 2. Variations of the cabochon cut 3. Diamond |  | | Report (issue) | | ¥ TEXAS ROCKS AND \ r - An Amateur’s Guide ;s ROSELLE M. GIRARD A b OF ECONOMIC GEOLOGY V N IVERSITY...The University of Texas Austin, Texas Peter T. Flawn, Director Guidebook 6 TEXAS ROCKS AND MINERALS...Rock identification charts Descriptions of some Texas rocks and minerals Anhydrite ................................................................ Cassiterite ..... -...................... .................Composition, hardness, and specific gravity of some Texas minerals Pace 25 26 39 40 43 43 43 44 45 46 47 |  | | Journal (article/letter/editorial) | | North America; the rare earth pegmatitesb of Llano County (Texas), Minas Geraes(BraziI), Ytterby (Sweden)...A. L Genesis of mica pegmatite deposits, Latah County, Idaho: , Econ. Geology,vol. 28, no. 1, pp. 41-58...30Lovering, T. S., Magmatic chalcopyrite, Park County, Montana: Econ. Geology,vol 19, pp 636-640, 1924...Geology and mineral resources of eastern Cassia County, Idaho: Brill. Id.aho Bta. Mines ond.Geology,vol...Flint, George M., Famous mineral localities; Beryl Hill, Grafton, New Hampshire: ,42. Mi.neral,., vol. 4 |  | | Report (volume) | | 248 259 269 271 275 281 r 4 CONTENTS. Page. Texas...................................................New Mexico, Oregon, South Dakota, Tennessee, and Texas; to list all the literature consulted would be impracticable...Phillips, W. B., The mineral resources of Texas: Univ. Texas Bull. 365, Sci. Ser. 29, 1914. Among other...Albany. North Carolina_.Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota_.Dr. A. G. Leonard, Grand Forks. Mr...See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found |  | | Journal (article/letter/editorial) | | Examples of alaskite pegmatites occur at Baringer Hill, Texas; New Ross, Nova Scotia;114and Silver Peak...near Milford, New Hampshire,lle and in Riverside County, California.r20Qtartz diorite pegmatites occur...Madagascar; Wodgina, Western Australia; Lunenburg County, Nova Scotia; IJto, Swedenl east Transbaikalia;123...of southern Norway; Ytterby, Sweden; and Llano County, Texas, and in an alkalic granite pegmatite at Cape...magnetite is abundant in some pegmatites (as at Llano County, Texas) and in the New Jersey Highlands it occurs |  | | Journal (issue) | | MINERAL COLLECTIONS IN TEXAS III A SUPPLEMENT TO THE MINERALOGICAL RECORD, NOVEMBER–DECEMBER 2020 ... Mineral Collections in TEXAS UVolume IIIV With an Introduction by Wendell Wilson A Supplement to...November–December 2020 MINERAL COLLECTIONS IN TEXAS Mineral Collections in Texas Volume III A Supplement to The Mineralogical...row, from left: Euclase, 2.3 cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department...Middle row, from left: Cassiterite twin, 5.5 cm, from the Amo tin deposit, Ximeng County, Yunnan, China. Wally |  | | Journal (article/letter/editorial) | | which have been exploited for feldspar, mica, cassiterite or other commercial minerals are either tabular...Geology and ore deposits of the Alma district, Park County' . e o l .S u n e y , B u l l . 3 , p . 4 6 , t...of Madagascar, central Maine, Llano County, Texas, and San Diego County, California. On the other hand...Goranson, E. A., The hiddenite deposit in Alexander County, North Carolina: Am. M.ineralogist, lS, pp. 2gG-302...formed.le Pegmatite dikes cutting limestone in Ferry County, Washington, have produced a garnet rock composed |  | | Report (volume) | | ................................. Androscoggin County............................................. Auburn......................................... Lincoln County ............................................................-...:.....-................. Oxford County........................;............................................................. Sagadahoc County.. '...... ............................................................................ Hartford County ..... ....................:............ ...... |  | | Journal (article/letter/editorial) | | considered to be attractive targets by Mountain Pass mine in California. Mountain Pass was for companies and...processed as by-products of ilmenite, zircon, and cassiterite mining. These monazites are generally relatively...~1 wt% 1 48 Page Brook Road, Carlisle, MA 01741, USA E-mail: reomariano@aol.com to as high as 27 wt%....Kangankunde, 2 1134 North Road, Carlisle, MA 01741, USA Malawi; Wicheeda Lake, British Columbia, Canada)...(Australia), Araxá and Catalão I (Brazil), Mrima Hill (Kenya), Mabouni (Gabon), and several other carbonatite |  | | Journal (article/letter/editorial) | | othertypesof deepseateddepositsincludemonazite,cassiterite,apa[ite, zircon and the andalusite-sillimanite-kyanite... all of which showedcrystal faces. In the Natas mine in middle South-West Africa such a vein in sc...2 a vein in mica schistscarriesamblygonite, cassiterite,apatite and quartz, and judging from the contained...the complexpe•o•natites, suchas thoseat Baringer Hill, near Llano, Tex.; Mount Mica, at Paris, Maine; Pala...muchbetterthan in mostpegmatites.It formed thepointof a hill andoriginallyshowed at thetopa rounded mass about200 |  | | Report (volume) | | Monazite deposits in calcareous rocks, northern Lemhi County, Idaho: Idaho Bur. Mines and Geology Pamph. 99... p. 76-77. Gadolinite from Llano County, Tex., and from Henderson County, N. C., has been mined and used...Minerals of the rare-earth metals at Baringer Hill, Llano County, Tex.: U.S. (}eol. Survey Bull. 340,...suggest a common local bedrock source for both the cassiterite an...deposits of the Mountain Pass district, San Bernardino County, Calif: U. S. Geol. Survey Prof. Paper 261, 75 |  | | Journal (issue) | | 179 by Paul Tambuyser Yttrocrasite from Central Texas..............................182 by Wilson W. Crook...No. 3 Carl Francis Long Hill Tungsten Mine Trumbull, Connecticut The Long Hill tungsten deposit at Trumbull...Trumbull, Fairfield County, Connecticut, which is noted for its large pseudomorphs of wolframite after...produced good crystals, is located in Trumbull’s Old Mine Park. Mining was never very prof itable and the...drinking water, a comfort station, and parking lot Old Mine Park is today an attractive and popular recrea |  | | Journal (article/letter/editorial) | | Department, 110 S. Madison St., Adrian, Michigan 49221, USA ABSTRACT Pegmatites containing rare elements can...Wisconsin, USA McAllister pegmatite, Alabama, USA S. Maine pegmatites, USA Brown Derby, Colorado, USA San Diego...Diego Co., California, USA Black Hills, South Dakota, USA Red Cross Lake, Manitoba Canada Mavis Lake...Colorado, USA South Platte, Colorado, USA Lake George, Colorado, USA Mt. Rosa/Stove Mtn., Colorado, USA Trout...Colorado, USA Mojave District, Arizona, USA Searchlight Dist., Nevada, USA Barringer Hill, Llano, Texas, USA |  | | Report (issue) | | area to be considered. In the southern part, near Hill and Keystone, the hills exhibit rounded contours...easily weathered schists have worn away. North of Hill City, in the vicinity of Lead, the hills are flat...area, which resembles much of the country between Hill City and Keystone, though with a somewhat more marked...which are exposed from Tinton to the region south of Hill City. The schists are amphibolitic, staurolitic...pegmatites, which are particularly numerous in the Hill City, Keystone, and Tinton areas. A series of quartz |  | | Report (volume) | | for the following observation. At the W. Wilson mine, "a few secondary minerals, mainly metatorbernite...dikes, in schists, in the Ohio City area, Gunnison County, Colo. The microlite, associated with lepidolite...found in several pegmatites in Georgia. In Lamar County, yellow and green secondary uranium minerals occur...uranium-bearing pegmatite bodies in San Bernardino County, California: Am. Mineralogist, v. 38, p. 1040-1050...two uranium-bearing pegmatites in San Bernardino County, Calif. The Cady Mountains pegmatite body, near |  | | Journal (issue) | | ................78 by Pete J. Dunn The snowbird Mine, Montana’s Parisite Loca lity.....................Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas............................................... 112 by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico......................... 115 by...between Minot and Auburn, Maine, in Androscoggin County. The Pulsifer quarry, along with the Keith and...STEVENS, J.P. (1972) Gems and minerals o f Oxford County. Published by Perham’s Maine Mineral Store, 136-153 |  | | Report (volume) | | ................................. Arsenical cassiterite................................................................. 75 Some minerals from Beaver County, Utah................................. 77 Introduction.......................... Thaumasite from Beaver County, Utah..................................... Introduction...in this paper, comprises the minerals rutile, cassiterite^ mossite, tapiolite, nigrine, iserite, ainalite... Tapiolite. Rutile. a Cassiterite. ° a The formulas of rutile and cassiterite are given in the form |  | | Report (chapter) | | zircon, monazite-xenotime, tantaloniobates, and cassiterite, because of the high closure-temperatures and...However, some of the deposits were sources of cassiterite placers in the Tin belt of Swaziland; these placers...is Wodgina–Cassiterite Mountain. According to the statistics on the USGS website, the mine has produced...Streeter granites in the western part of the Llano Uplift in Texas. The post-orogenic nature of the granites...(Broughton 1973). Of the rare-metal minerals, only cassiterite was recorded. Note that rare-element pegmatites |  | | Report (issue) | | certain ores, as for example those of the Quyon mine, Quebec, but oil flotation is far more generally...Drake walls mine, near Calstock (r7J. From a remark in the de scription of the Drakewalls mine in the memoir...Killifreth mine, between St. Day and Chacewater Station. It has also been seen in old dumps at Kit Hill, Callington...Donegal, and again at Lough Laragh, in the same county, in a small acid dyke penetrating a pyroxenic rock...wolfram and cassiterite in lodes in, or close to, the large granite intrusions forming the hill ranges of |  | | Book | | Mineralogy University of ~1ichigan .. 1958 McGRAW-HILL BOOK COMPANY, INC. NEvV YORK TORONTO LONDON ~...RADIOACTIVE RAW MATERIALS Copyright © 1958 by the McGraw-Hill Book Con1pany, Inc. Printed in the United States... . . . . . . . . . . . . . . . . . . . . . . . Texas . . . . . . . . . . . . . . . . . . . . . . . ....sphene; but perovskite, melanite, rutile, and cassiterite, all of exceedingly weak radioactivity, may also...and some zircon (var. cyrtolite). In the Baringer Hill, Texas, pegmatite, Landes ( 1932) noted fissures |  | | Journal (issue) | | call for appointment Tourmaline Tourmaline Queen Mine Pala, California NEW ACQUISITIONS: AZURITE - Mibladen..., San M ateo, CA 94403 H. Earl Pem berton, 1638 Hill St., Santa M onica, CA 90405 Abel Selburn, 24700...63105 314-726-2236 CUPRITE with Malachite — Onganja mine, South West Africa See “W hat’s New in Minerals”...ships had been transporting cryolite ore from the mine at Ivigtut in southwesterly Greenland to Philadelphia...fall, an ore-bearing ship in its voyage from the mine to Phila delphia. The story of the Greenland trip |
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