 | | Journal (article/letter/editorial) | | Figure 1: View of the Crystal Mountain district, looking west. Crystal Mountain is in the center background...from the Pegmatites of the Crystal Mountain District LARIMER COUNTY, COLORADO MARK I. JACOBSON 1350 E ...Littleton, Colorado 80122 B L U E A P A T I T E C R Y S T A L S , purpurite, chrysoberyl, and beryl are some...collected in the Crystal Mountain district. This is one of the few pegmatite districts in Colorado where neiÂ...wishing to make significant con tributions to pegmatite mineralogy and geology. One pur pose of this |  | | Journal (article/letter/editorial) | | PEGMATITES OF EIGHT MILE PARK, FREMONT couNTY, coLoRADO E. Wm. Heinrich, Deparlment of Mineralogy, Uniaersi....).).) Chlorite Lepidolite Garnet. Beryl Tourmaline. Apatite. Triplite . . Fremontite..... Columbite...PARK, COLORADO .).) I MINERALOGY GeNBnar, FnarunBs On the basis of occurrence the pegmatite minerals...Other subordinate constituents are oligoclase, garnet, schorl, magnetite, and chlorite. The rarer constituents...important minerals are tourmaline, garnet, apatite, beryl, lepidoIite, triplite, and chalcocite. Other, still |  | | Report (edition) | | photograph: Elbaite crystals. Crystal at left is 4. 5 cm tall; crystal at right is 5 cm tall; gem weighs...Buckfield, Maine. Mined in 1996 by Holden !Jrothers Mining and currently in the Jim Mann collection. Photo...I 900 ' s, showing Loren Merrill 's tourmaline mining operation at Mount Mica. Table of Contents CHAPTER...Techniques . . . . â˘. . . . . Collecting in the Wbi Mountain National Forest Sources of additional information...much information on collecting sites in Oxford County. Numerous other collectors of Maine minerals also |  | | Book (volume) | | ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ..................................Co. Mining Districts ............................................................22 Arizona County Map.........................23 Arizona â Cochise Co. Mining Districts .................................... |  | | Journal (article/letter/editorial) | | geochemistry of the Sebago graniteâpegmatite system, southern Maine, USA Michael A. Wise*, Cathleen D. Brown...homogeneous, two-mica granite situated in the Oxford pegmatite field, southwestern Maine. Surrounding the pluton... sodic aplite and potassic pegmatite pods hosting rare tourmaline, beryl and columbiteâtantalite. Over...Over 100 granitic pegmatite bodies (Sebago Pegmatite Group â SPG) intrude the outer portions of the SMD...neighboring granitoids and metasedimentary rocks. The pegmatite population includes mineralogically simple to |  | | Journal (article/letter/editorial) | | ZONING IN PEGMATITE DISTRICTS* E. Wu. HurNnrcrr, University of Michigan, Ann Arbor, Michigon ABSTRACT...ABSTRACT fn numerous pegmatite districts the size, shape, external and internal structure, texture and mineral...mineral content of an individual pegmatite can be shown to be functions of the distance of the body from...Widespread and intensive field investigations of pegmatite mineral deposits during the last 15 years have...attention has been directed toward the study of pegmatite districts or provinces and toward relating the |  | | Book (volume) | | ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...conglomerates; the series includes granites, schists (mica, garnet, graphite, quartz), and gneisses, as well as numerous...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a |  | | Book (volume) | | ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...conglomerates; the series includes granites, schists (mica, garnet, graphite, quartz), and gneisses, as well as numerous...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a |  | | Journal (article/letter/editorial) | | British Columbia V6T 1Z4, Canada Abstract The pegmatite group on the northern slope of Mount Begbie, near...B.C., comprises more than 50 relatively small pegmatite bodies. The pegmatites have diverse ranges of...are more fractionated and correspond to beryl-columbite, beryl-columbite-phosphate, and lepidolite subtypes...cordierite-sekaninaite, garnet, rare element-bearing silicate minerals (beryl, chrysoberyl, bertrandite...hĂźbnerite, qitianlingite), phosphate minerals (triplite, lithiophilite, Mn-rich apatite, xenotime, monazite) |  | | Journal (article/letter/editorial) | | minerals from the Scheibengraben beryl-columbite granitic pegmatite, MarĹĄĂkov, Czech Republic MILAN NOVĂK1...in columbite-group minerals from the beryl-columbite pegmatite at Scheibengraben, MarĹĄĂkov, Northern...Northern Moravia, Czech Republic. The pegmatite consists of five textural-paragenetic units, from the least to...columbite-group minerals differ from those observed in beryl pegmatites examined to date, but they are comparable...(facilitated by low contents of B, P and Li in the pegmatite melt) very likely maximized such an extensive |  | | Book (volume) | | discovered Diamonds, the largest a pale yellow crystal of 4½ carats picked up near Morrow Station in Clayton...Many other gem crystal species occur in pegmatite exposures, such as Aquamarine, Beryl, some Ruby-red...Dahlonega Co. and Rabum Co., and ď the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmďžjasper. BANKS COUNTY COMMERCE, along Hwy. 59...Co. lineďžBeryl. MAYSVILLE, area gravels along adjoining Co. lineďžrock crystal. BARROW COUNTY WINDER, |  | | Book | | much biased by science with too little sense of mine for beauty) will keep his memory and work, alive...so as to render mining of these rare-element pegmatites feasible. The traditional mining of pegmatitic...aplitic rocks. In light of more than 1000 years of mining and an intensive study of the deeper parts of the...quartz at the core of the pegmatite is concerned. In comparison with other pegmatite deposits in the area...area, however, the Hagendorf-Pleystein Pegmatite Province (HPPP) is not only the largest concentration of |  | | Report (issue) | | AUTOPRINT crystal to the Roentgen ray (SELF-PRINT) for five minutes, OF KUNZITE and then CRYSTAL. laying...California Issued California State by the Mining Bureau Francisco. Ferry Building, San Lewis ...transmit Bulletin honor to F. George Bureau: Mining Ornamental the Honorable and California, of...---------------- SPINEL 48 ---------------- BERYL ---------------- GARNET 50 54 -------------- TOURMALINE...CALIFORNIA APPENDIXâCALIFORNIA 121 ---------- STATE MINING BUREAU 159 ----- LIST No. Relief 1. of |  | | Book (edition) | | week collecting in the pegme.tite area ot Oxford county, !!Bine, Neil Wintr:lnghal'!l, a pa.st-president...been replaced in the locality seotion by the Scotty Mine, an active operation of considerable interest. The...wishes to thank Mt-. Dana c. Douglass (Douglass Mining Co., Bethel), Mr. Stanley Feitler ( Beryllium DeveloIJDent... West Rlris), and Mr. H. Arthur Ashley (Ashley Mining Co. , West Rumney, N.H. ) for the many courtesies...characterized the evenings spent with members of the Oxford County Mineral & Gem Association. N. A. W. Mountainside |  | | Book (volume) | | & MINERAL GUIDE Where & How to Dig, Pan and Mine Gems & Your Own | Minerals KATHY J. RYGLE & STEPHEN...vacation stops at a roadside âdig your ownâ gem mine. Junior finds a sapphire the size of a peach and...) Many an unsuspecting tourist has stopped at a mine to try his or her luck and become a rockhound for...Idaho Arizona California lowa Minnesota Montana Colorado Hawaii Nebraska North Dakota Oregon South Dakota...Northeast States Connecticut Delaware Kentucky District of Columbia Illinois Indiana Louisiana Maine |  | | Journal (article/letter/editorial) | | PEGMATITES FROM THE PAMPEAN PEGMATITE PROVINCE, ARGENTINA: IMPLICATIONS FOR PEGMATITE FRACTIONATION ADRIANA...University, 101 Graham Building, Greenville, NC 27858, USA MIGUEL A. GALLISKI IANIGLA, CCT MENDOZA-CONICET...Sin Nombre pegmatites) and Conlara (Nancy pegmatite) pegmatite districts, Argentina, was analyzed to investigate...relationship between its chemistry, pegmatite mineralogy, and pegmatite melt evolution. Based on the molecular...for granitic pegmatites. Gahnite from the Nancy pegmatite has higher Mg and Mn contents than gahnite from |  | | Book (volume) | | Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravelsâŻagate, jasper, rare...âŻagate, jasper; d RR siding of ClayâŻagate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area depositsâŻSiderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...depositsâŻSiderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mineâŻpyritized gastropods |  | | Book (volume) | | Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravelsâŻagate, jasper, rare...âŻagate, jasper; d RR siding of ClayâŻagate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area depositsâŻSiderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...depositsâŻSiderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mineâŻpyritized gastropods |  | | Journal (volume) | | Dmitrii V. Runskvist Victor T. Trofimov Marie Huizing (USA) Terry E. Huizing Managing Editor Ludmilla A. Cheshko...processimg Prepress Text (Russian), schemes, crystal drawings belongs to authors, 2006 Text (English)...Pictures Ltd. 4871 S. Dudley St., Littleton CO 80123 USA E-mail: minbooks@online.ru Web-site: www.minbook...collector Vladimir Pelepenko. After visits to the Ural Mining Academy Museum and the Pelepenko public museum...(the mineral kanonerovite, from the Alabashka pegmatite field in the Middle Urals, is named for him) | | | Book (volume) | | vacation stops at a roadside âdig your ownâ gem mine. Junior finds a sapphire the size of a peach and...) Many an unsuspecting tourist has stopped at a mine to try his or her luck and become a rockhound for...Alaska Idaho Southwest States Arizona California Colorado Hawaii Kansas Nevada New Mexico Oklahoma âTexas...VOLUME 4: Northeast States Connecticut Delaware District of Columbia Illinois Indiana Maine Maryland Massachusetts...GUIDES TO THE U.S.A. Where & How to Dig, Pan, and Mine Your Own Gems & Minerals VOLUME 4: NORTHEAST STATES |  | | Book | | Petrified Forest Trails Arizona Gem Trails and the Colorado Desert of California High Tension (A Biography)...Rocks; Minerals Found in Igneous Rocks; Granite Pegmatite Gems and Minerals; Hydrothermal Mineral Deposits;...\merica Alabama Alaska Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho...chert, flint, jasp-agate, jasper, quartzite, rock crystal, amethyst, chrysoprase, opal, etc.), serpentine...clear red carnelian, purple amethyst, and rock crystal-all mounted in heavy gold settings that were further |  | | Journal (article/letter/editorial) | | 1555-1571 (2012) DOI : 10.3749/canmin.50.6.1555 THE GARNET â PHOSPHATE BUFFER IN PERALUMINOUS GRANITIC MAGMAS:...MAGMAS: A CASE STUDY FROM PEGMATITES IN THE POCHO DISTRICT, CĂRDOBA, ARGENTINA Fernando COLOMBO§ CONICET...appear associated to P-bearing garnet (up to 1.10 wt.% P2O5 in the crystal cores) in two primitive pegmatites...pegmatites of the Pocho district, CĂłrdoba, central Argentina. Elemental maps and electron-microprobe analyses...show that garnet has an irregular P distribution, with depleted rims. Textural features of garnet (resorbed |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...Tourmaline crystal group 9 cm long, with albite and lepidolite, mined recently at the Himalaya mine, Pala...just as well have been included in the eventual Beryl Issue. Although discussion of the aquamarines may...[1975, vol. 6, no. 1, p. 22-25.] Newry, Maine, a pegmatite phosphate locality (by V. T. King) [1975, vol...[1977, vol. 8, no. 2, p. 100-108.] The dravite crystal bonanza of Yinnietharra, Western Australia [1977 |  | | Book (volume) | | vacation stops at a roadside âdig your ownâ gem mine. Junior finds a sapphire the size of a peach and...) Many an unsuspecting tourist has stopped at a mine to try his or her luck and become a rockhound for...States VOLUME 2 Alaska Idaho Arizona California Colorado lowa Minnesota Montana Hawaii Kansas Nebraska...VOLUME 4 Northeast States Connecticut Delaware District of Columbia Illinois Indiana Louisiana Maine...U.S.A. 4TH EDITION Where & How to Dig, Pan, and Mine Your Own Gems & Minerals VOLUME 2: SOUTHWEST STATES |  | | Book (edition) | | vacation stops at a roadside âdig your ownâ gem mine. Junior finds a sapphire the size of a peach and...) Many an unsuspecting tourist has stopped at a mine to try his or her luck and become a rockhound for...Southwest States California lowa Minnesota Montana Colorado Nebraska North Dakota Oregon South Dakota Washington...Connecticut Arkansas Florida Georgia Kentucky Delaware District of Columbia Illinois Indiana Louisiana Maine...U.S.A. ATH EDITION Where & How to Dig, Pan, and Mine Your Own Gems & Minerals VOLUME 3: SOUTHEAST STATES |
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