 | | Journal (issue) | | 2005 The Mineral Collector's Newsletter Native Silver $3.00 First in a Series Bill Shelton & Jeff...of the most popular among mineral collectors is silver. Some very fine examples have recently been recovered...penetration twin). While silver crystals are not common from Mexico, silver wires from Mexico are spectacular...(Continues on page 2) An extremely fine matrix wire silver from Mexico. How NOT to Disperse a Collection...like Peru, has recently produced some nice wire silver specimens. The illustration shows one of the best |  | | Journal (issue) | | quartz, 10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by...r a d o Onta rio , Can ad a K O K IYO ( 6 1 3 - 4 7 3 - 4 3 2 5 ) Fra n k & W e n d y M e la n s o n ...significant mineral localities in C o l o r a d o ,by county. In addition, there is a complete listing o f all...LOCALITY INDEX BOULDER COUNTY Caribou Mine Caribou (near Nederland), Caribou District (Silver, Uraninite, Galena...mine Ward, Ward District (Silver, Barite, Galena, Siderite) CHAFFEE COUNTY California mine Nathrop, Browns |  | | Journal (issue) | | Dam gold prospect is located in central Dickinson County, Michigan, approximately ten kilometers north of...the dominant exposed bedrock in this part of the county. Excavated near the tum of the 20th century, the...JohnA. Jaszczakphoto. October 12-18, 2007 Trip to Arkansas Art Smith artsmithite@msn.com Having a need to...away and see some rocks and minerals, a trip to Arkansas was scheduled and being the weekend of the Mt...obvious even when visiting some of the Garland County mines. I also planned to do some Magnet Cove collecting |  | | Book (volume) | | commercial production of minerals, principally Gold, Silver, Copper, Iron, Lead, Manganese and Zinc, along...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles |  | | Journal (article/letter/editorial) | | mineralization in the southwestern Nevada volcanic field, USA S t e p h e n B. C a s t o r a a n d S t e v e n...School of Mines, Universityof Nevada, Reno, NV 89557. USA bDepartment of Geological Sciences, Mackay School...School of Mines, Universityof Nevada, Reno. NV 89557, USA (Received August 27, 1991; accepted after revision...mineralization in the southwestern Nevada volcanic field, USA. Ore Geol. Rev., 7: 193-223. The southwestern Nevada...reserves greater than 60 t of gold and 150 t of silver. The volcanic rocks consist predominantly of ash-flow |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | Solé, Jesús, Pi-Puig, Teresa, Ortega-Rivera, Amabel (2021) A Mineralogical, Geochemical, and Geochronological Study of ‘Valencianite’ from La Valenciana Mine, Guanajuato, Mexico. Minerals, 11 (7) 741 doi:10.3390/min11070741 | Journal (article/letter/editorial) | | Valencianite has been described as a variety of K-feldspar (adularia) from La Valenciana mine, Guanajuato...presence of monoclinic (~50%) plus triclinic (~50%) K-feldspar. The literature data show some extreme structural...is proposed. The temperature of formation, the Na/K ratio, and the growth kinetics seem to be the main...factors controlling the morphological changes in K-feldspar crystals. The geochemistry of valencianite shows...doi.org/10.3390/min11070741 Keywords: alkali-feldspar; adularia; X-ray diffraction; Rietveld refinement; |  | | Journal (issue) | | phosphate minerals from Mauldin Mountain, Montgomery County, A rkansas..................................tn V brothers MTNS K IN G S G A T E sYarrow C re e k G raham s Valleyc [P in k e tt M ^ybole G le n...e Rly S tn I M o g g ’s S w a m p u CRO W N MTN K o o kab o o kra Ben Lomond ,W an d s w o rth Oban...es on Yates freeho ld land. A - J S a ch s o f K ingsgate pro perty. U p ip es lo c a te d since...visitors. As recently as 1973, a virgin quartz-feldspar pipe was found at Kingsgate by a farmer clearing |  | | Journal (issue) | | high quality crystals in the Thomas Range, Juab County. Utah. Maynard Bixby first discovered Bi xbyite...same location was later "rediscovered" by ArWur Montgomery and Ed Over back in 1934 while they were Continued...Wulfenite Mystery of the Madison Mine, Madison, Carroll County, New Hampshire Art Smith 9118 Concho Street Houston...}Vlinerals By Arthur E. Smith. Jr. The only book on Arkansas Minerals: 149 pages plus 8 pages of color photos...maps, covers the Ouachita Mtns. area where most Arkansas minerals occur. with most quartz. localities. |  | | Report (issue) | | acknowledge the contributions of these organizations: Arkansas Geological Commission Illinois State Geological...representing the Executive Director of St. Louis County 8:30 An introduction to the research programs of...deposits similar to the Olympic Dam ore body -P. K. Sims, K. J. Schulz, and Eva B. Kisvarsanyi 4:00 Methodology...evaluation of the Pea Ridge iron ore mine (Washington County, Missouri) for rare earth and precious metal potential...resources of the Trans-Hudson orogen, U.S.A. -P. K. Sims, Zell E. Peterman, and T. G. Hildenbrand Geologic |  | | Report (volume) | | Joe Limestone Member of the Boone Formation, Arkansas, by Mackenzie Gordon, Jr ----------Six new members...members of the James Run Formation, Cecil County, northeastern Maryland, by Michael W. Higgins ---------------------The...Arizona -----Generalized geologic map of Cecil County, Md., showing members of the James Run Formation... Arizona, p. A 117 3. Walls Feny Limestone, . Arkansas, p. A 120 4. ·James Run Formation, Maryland, p... D.J.• , 1976, Geologic map of western Whatcom County, Washington: U.S. Geol. Survey Misc. Geol. Inv |  | | Book | | (Umwandlung mit Austausch von Stoffen); e.g., feldspar altered to cassiterite. In 1855, Gustav Georg...been erroneously described as pseudomorphs after feldspar or calcite. Polyhedroid is the preferred term...local equilibria defined by a Lippmann the product, K(Br,Cl), appears milky, due to the development of þ...fringes are produced by a reference rim was a Br-rich K(Br,Cl) phase and gradually beam, which is inclined...the molar volume reduction in replacing KBr by a K(Br,Cl) solid solution phase (Glikin et al., 1994; |  | | Journal (article/letter/editorial) | | 1990 / Accepted July 5, 1990 Abstract. Alkali feldspar cleavage fragments from the Klokken layered syenite...work (Brace et al. 1972; Sprunt and Brace 1974; Montgomery and Brace 1975; Worden et al. 1990) has confirmed...from various igneous rocks, it was suggested (Montgomery and Brace 1975) that the observed turbidity was...image of an (001) cleavage surface of an alkali feldspar from the Klokken intrusion with numerous micropores...elastic strain within the mineral. Subsequently, the feldspar reacts with a fluid causing major changes in the |  | | Report (issue) | | Office of Minerals Mobilization State Agencies: Arkansas Geological and Conservation Commission California...district. _ East Tintic silver-lead district, Utah. ______ Coeur d'Alene lead-zinc-silver district, Idaho__..._ Colorado Plateau.______________________ Gila County, Arizona_--__-_--__--------Crooks Gap area, Wyoming...McAlester basin, Oklahoma-_____________ Wilson County, Kansas.-..-------------Horseshoe atoll, Midland...and Arkansas. Ozark region and Eastern Plains _________________ Geology of northwestern Arkansas.__________ |  | Appleman, Daniel E., Evans, Howard T., Nord, Gordon L., Dwornik, Edward J., Milton, Charles (1987) Delindeite titanosilicates and lourenswalsite, two new from the Magnet Cove region, Arkansas. Mineralogical Magazine, 51 (361) 417-425 doi:10.1180/minmag.1987.051.361.08 | Journal (article/letter/editorial) | | new titanosilicates from the Magnet Cove region, Arkansas DANIEL E. APPLEMAN Department of Mineral Sciences...Smithsonian Institution, Washington, D.C. 20560, USA AND HOWARD T. EVANS, JR., GORDON L. NORD, EDWARD...U.S. Geological Survey, Reston, Virginia 22092, USA Abstract Delindeite and lourenswalsite are two...syenite in the Diamond Jo quarry, Hot Spring County, Arkansas. Delindeite is found as aggregates of flake-like...data, is approximately (Na, K)2.7(Ba,Ca)4(Ti,Fe,AI)6SisO26(OH)14, with Na > K, Ba >> Ca, Ti >> Fe,AI; Z |  | | Report (issue) | | task by Stanley W. Lohman, Edward T. Ruppel, Paul K. Sims, and Vernon E. Swanson. Mrs. Virginia P. Byers...Studies in Colorado. ____________________ East Tintic silver-lead district, Utah_ _____ Central mining district...Beryllium in the Mount Wheeler area, White Pine County, Nevada-__________ Beryllium in the Lake George...the United States.- _________ Coal resources of Arkansas. ______________ Geology of specific coal fields...northeastern Arkansas and southeastern Missouri_________________ 22 Arkoma basin, Arkansas and Oklahoma |  | | Book | | of the] FM-TGMS-MSA Wulfenite Symposium (chairman: K. Wenrich) 21:98100 Abstracts of the FM-TGMS-MSA Symposium...(chairman: K. Wenrich) 22:65-69 [Abstracts of the] FM-TGMS-MSA Symposium on Garnet (chairman: K. J. Wenrich)...15th annual FM-TGMS-MSA Mineralogical Symposium: silver (chairman R. W. Graeme) 25:69-76 New minerals recently...ADULARIA Adu Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73 |  | LeAnderson, P. James, Schrader, E.L., Brake, Sandy, Kaback, Dawn S. (1987) Behavior of molybdenum during weathering of the Ceresco Ridge porphyry molybdenite deposit, Climax, Colorado and a comparison with the Hollister deposit, North Carolina. Applied Geochemistry, 2 (4) 399-415 doi:10.1016/0883-2927(87)90024-2 | Journal (article/letter/editorial) | | c . , P . O . B o x 32370, L o u i s v i l l e , K Y , U . S . A . SANDY BRAKE Department of Geology...The calculations are based on: a temperature of 298°K (the range of FIo. 2. E h - p H diagram of native...that minerals at 298°K an Iatm. The stabilityfieldsof aqueous an assumption of 298°K does not introduce...water that reacts with pyrite and aqueous K + to produce jarosite (K + concentration = 10 -6 moles/l; BLADH...glaciers occupied both the Ten Mile Cirque and Upper Arkansas Valley, tributaries of the Colorado and Mississippi |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A, County Mus. of Nat. Hist. Los Angeles, CA Steven R. Morehead...................................... 51 Chairman: K. Wenrich W hat's n e w in m in erals D en v er S h...mineral localities T h e I l l i n o i s -K e n t u c k y Fl u o r it e D is t r ic t Alan Goldstein...Boulevard Louisville, Kentucky 40242-3539 T he Illinois-K entucky flu o rite district has been fa m o u s fo...u a t e o f L i m e . . . In Illinois, Gallatin County, on Peter's Creek, 17 miles from Shawneetown, and |  | | Report (issue) | | By-Product Commodities Molybdenum, gold, and silver are the economically most important by-products...polymetallic assemblage of copper-, zinc-, lead-, and silver-bearing sulfide minerals. Example Deposits There...chalcopyrite, and sphalerite + galena + tetrahedrite ± silver. This paragenetic sequence differs from that published...gangue silicate and oxide minerals are quartz, K-feldspar, biotite, muscovite (sericite), magnetite, chlorite...of gangue minerals, such as pyrite or potassium feldspar, may be present with no apparent fracture control |  | | Journal (issue) | | Three mine pegmatites, Ramona district, San Diego County, California ............................101 by...Three property in the Ramona district, San Diego County, California. This mine, strictly speaking, is developed...dark green elbaite, some pink and red elbaite, K-feldspar and cleavelandite (albite) have also been produced...for the other pegmatite gem mines in San Diego County, the collapse o f the Chinese tourmaline market... EXPLANATION Pegmatite deposits showing di p TOM K wm(?) Woodson Mt.(?) granodio rite Kgym Green |  | Hayes, T. S., Landis, G. P., Whelan, J. F., Rye, R. O., Moscati, R. J. (2012) The Spar Lake Strata-Bound Cu-Ag Deposit Formed Across a Mixing Zone Between Trapped Natural Gas and Metals-Bearing Brine. Economic Geology, 107 (6) 1223-1249 doi:10.2113/econgeo.107.6.1223 | Journal (article/letter/editorial) | | from TSR. Introduction THE SPAR Lake copper (Cu)-silver (Ag) deposit is a red bedassociated strata-bound...Location map of Spar Lake deposit and other copper-silver mines and prospects in the Revett Formation, northwestern... THE SPAR LAKE STRATA-BOUND Cu-Ag DEPOSIT, MONTANA, USA FIG. 3. Mineral zonation of the Spar Lake strata-bound...THE SPAR LAKE STRATA-BOUND Cu-Ag DEPOSIT, MONTANA, USA NE SW A No vertical exaggeration projected from...minerals graded from central chalcocite + chlorite + K-feldspar + albite + hematite + ankerite (chalcocite-chlorite |  | | Journal (article/letter/editorial) | | photo. MayNune: Silver with calcite, Southwest orebody, White Pine mine, Ontonagon County, Michigan. Lance...Sphalerite with pyrite and calcite, Portland mine, Ouray County, Colorado. Barbara Muntyan specimen, Jeff Scovil...Novemberficember: Gold, Ten Mile district, Humboldt County, Nevada. Coogan Gold specimen, Jeff Scovil photo...Cove, Arkansas, J. M. Howard, 92-102 Buchholz, T., Minerals of a Wausau Pegmatite, Marathon County, Wisconsin...Quarry (Valentine Deposit), Town of Diana, Lewis County, New York, 236-49 Charles, M. A., see 'henty-Fifth |  | | Journal (issue) | | Jean COWMAN & Philip PERSSON Tribute Pocket, CO, USA Mineral photography: James Elliott INTRODUCTION...from the Tribute Pocket, Agnus Dei claim, Colorado, USA. HISTORY: DISCOVERY AND RE-DISCOVERY Topaz has been...this mine. Associated Photographer: Jeff Scovil (USA) Topaz is a rather common mineral, forming during...south-eastern portion of the Pikes Peak massif, El Paso County, Colorado, was one of the most significant mineral... INTRODUCTION Associated Editors: Paul Cragan (USA) Malcolm Southwood (Australia) P. Persson photo |
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