 | | Journal (article/letter/editorial) | | Mineralization in the Comstock District, Nevada DONALD M. HUDSON† 1540 Van Petten Street, Reno, Nevada 89503 Abstract...metal deposits of the world-renowned Comstock district of western Nevada constitute one of several superimposed...superimposed Miocene hydrothermal systems. In the district, Mesozoic metasedimentary and igneous rocks are...kaolinite alteration exposed at the periphery of the district may be linked to preore alteration near the paleowater...higher-temperature parts of the lodes. Adularia and rare bladed calcite indicate boiling during deep low-sulfidation hydrothermal |  | | Journal (article/letter/editorial) | | Figure 1. Top: Outline of the Findlay Arch mineral district. Right: General location map for significant fluoriteproducing...fluoriteproducing quarries of the Findlay Arch district; prepared by William Besse. H “ OW MANY TIMES...from the White Rock quarry at Clay Center, Ottawa County, Ohio. Don and Gloria Olson specimen, Jeff Scovil...Arch Mineral District Ohio, Michigan, and Indiana Figure 3. Pugh quarry, Custar, Wood County, Ohio, included...collected at the Graymont Dolime quarry, Genoa, Ottawa County, Ohio, part of the Findlay Arch area. Joseph W |  | | Journal (article/letter/editorial) | | azurite, crystals of malachite, brochantite, and calcite. These make beautiful small cabinet specimens,...with greenish xline brochantite and tiny whitish calcite crystals. xline—crystalline rare species the...be recorded." Pala is in northwestern San Diego County of Southern California. COLORADO: Prof. Richard...came from Iron Hill, New Castle Co., Del. Writes Mr. Pickett: "Iron Hill and Mine Hill are one and the...the same with Iron Hill being the proper name. The U. S. Geological Folio, Elkton-Wilmington N o . 211 |  | | Report (issue) | | after deducting quartz 2.98%, dolomite 0.88%, calcite 0.50%, and H2 O− 0.80%, corresponds to (Cu, Zn)3...Terskii Alatau Range, Kyrgyzstan. In the USA, from the Engels mine, north of Taylorsville, Plumas Co., California;...the Gold Quarry mine, near Carlin, Maggie Creek district, Eureka Co., Nevada; from the Jomac mine, White...White Canyon district, San Juan Co., Utah; at the Emery mine, Chester, Hampton Co., Massachusetts. From...France, from the Cap Garonne mine, near le Pradet, Var, and in the Valcroze mine, Alzon, Gard. On the west |  | | Catalog/List | | Valley, Sheeprock Mts., Vernon, Tooele Co., Utah / USA; The exceptionally rare Thallium-Oxide, forms deep... Helvetia, Santa Rita Mts., Pima Co., Arizona / USA; Blue spherical crystal aggregates of 4 mm, rich...location"; NS 28,00; HS 38,00 Baghdadite xls Fuka Mine, Bicchu-cho, Takahashi City, Okayama Pref. / Japan;...mm, together with some dark brown perovskite in calcite matrix. Excellent specimens of the rare Zirconium...Silicate. KS 48,00; NS 95,00 Borcarite xls Fuka Mine, Bicchu-cho, Takahashi City, Okayama Pref. / Japan; |  | | Journal (article/letter/editorial) | | friends of mine found some interesting specimens which turned out to be selenite xls and tiny calcite, quartz...and are quite interesting. They came from the King Mine near Cripple Creek." CONNECTICUT—A very nice specimen...and coming from the Worth feldspar quarry on Bog Hill, East Hampton, Middlesex Co., Conn., has been sent...of adjacent quarries at the Hurd Park end of Hog Hill. I used to visit the place, from time to time, but...After carrying that load of scheelite over a steep hill, and on a road which was paved with boulders, I |  | | Journal (article/letter/editorial) | | In a letter dated Feb. 8, 1952, from Charles E. Hill, owner of the Arizona Agate Mines at Cave Creek...Shalevetz, were received. One was greenish with white calcite vein (specked with red and brown) and the other... sists of poorly xled white calcite on dark gray limestone; the calcite fluoresces pink under the Mineralight...limestone containing veins of white xline calcite; this calcite fluoresces a bright red (one of the brightest..."flame" fluorescence. The pinkish fluorescent calcite was found on the Crystal River, the other near |  | | Journal (article/letter/editorial) | | xled—crystallized ph—phosphorescence ALABAMA—Xled calcite varying in color from colorless to amber, on white...xls of calcite coated with limonite which fl. strong red (SW) equal to Franklin, N . J., calcite."—item...chromite with greenish chrome amphibole from Camp 8 Mine, Del Norte Co., Calif., was sent in by Carroll R...City, Calif. ARKANSAS—"The Coleman quartz crystal mine is located 14 miles north of Hot Springs (Garland...were a sort of coating on several rocks near an old mine. I am very interested in what they are, thought |  | | Journal (article/letter/editorial) | | is the county seat and is situated in about the center of the county. I do not know if this mine is still...of the dealers ; however I did not ask from what mine these were from." ARIZONA—We recently received...Sea (in southern California —chiefly in Imperial County) one of the World's great geological freaks of...its shores." ARKANSAS—The Morning Star mine, in Marion County, Ark., has furnished many handsome specimens...smithsonite. Desiring to ascertain the location of this mine we petitioned the help of Byron C. Marshall, 204 |  | | Journal (article/letter/editorial) | | near Pyriton, Clay County, Ala., was worked for copper. One was mined near Stone Hill in the southern part...of Cleburne County at what was called Wood's copper mine and also at Smith's copper mine about a mile...mile to the northwest. Much of the mining was done in the early seventies. There was a large amount of pyrite...altered into chalcedony. "In the Martinez Lake District, which is part of the Colorado River and 37 miles...Kansas City 3, Mo., a nice brownish-gray section of calcite stalactite from Diamond Cave, Ark. A note with |  | | Journal (article/letter/editorial) | | northeast near Jamestown in Cherokee County is another lead mine." ARIZONA—A letter dated Sept. 17, 1953...to you that I found some nice quartz géodes and calcite crystals in Flagstaff (Coconino Co.), Arizona."...his letter, dated Aug. 19, 1953, writes:— "An old mine near here had cavities in it that contained a sandlike...Reservation north of this community (in Apache County) with "high hopes" of finding the legendary diamond...at the Red Ledge chromite mine in the Washington mining district of Nevada Co., Calif. It consists of |  | | Journal (article/letter/editorial) | | miles long extending from Coosa County thru Talladega and into Calhoun County. Most of the distance it is...So. Harvard Blvd. Los Angeles 47, Calif." — (see Nevada for other specimen). The kaersutite occurred as...Arizona kaersutite comes from Hoover Dam, Mohave County. A % inch black cube of limonite pseudo after pyrite...trip on Sat. March 6th, to the old Daulton copper mine in the lower foothills of Madera Co. on a search...them (not many contain the chlorite) at an old gold mine at Shingle Springs (El Dorado Co.), Calif. ROCKS |  | | Book (volume) | | investigate for geodes, chert nodules, fossils, Calcite crystals, Marcasite and Pyrite cubes. The area...chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza...gem qualityagatized and opalized wood. DAWES COUNTY CHADRON, in N part of Co. and as far W as Crawford |  | | Book | | ae i A Visitor Guide Pa BPD 4 ei Ey 4 [ MINING AND MINERAL OPERATIONS IN THE NORTH-CENTRAL STATES...cataloged as follows: United States. Bureau of Mines. Mining and mineral operations in the North-Central States:...and nonmetallics. Stable and economic domestic mining, mineral, metal, and mineral reclamation industries...enjoy your experiences. This pamphlet, a guide to mining and mineral operations that may be observed or...aid tourists and students who are interested in mining. Some may wish to study our Nation’s romantic past; |  | | Report (issue) | | and 9. The Physical Geology of the Grand Canon District, by Capt. C. E. Dutton, pp. 47-166, plates 10-36...plates 37-43. Abstract of Report on the Geology and Mining Industry of Leadville, Colorado, by S. F. Emmons...Summary of the Geology of the Comstock Lode and the Washoe District, by George F. Beckfer, pp. «91-330...Grand Canon District, with atlas, by Capt. C. E. Dutton. Published. m. Geology of the Comstock Lode and...and Washoe District, with atlas, by George F. Becker. I. II. ADVERTISEMENT. ii Published. IV. Comstook |  | | Journal (article/letter/editorial) | | offers an array of other minerals, including superb calcite, strontianite, barite, dolomite, and sphalerite...famous Green (Strontian) Island site in Ottawa County (Douglass, 1820, 1821). Although Ohio's minerals...and the Serpent Mound zinc district continue to attract the attention of mining geologists in their search...Findlay Arch district. )- 1 Findlay Arch District • 1 - LOUDEN Serpent Mound District OHIO Figure...Figure 2: Mineral localities of the Serpent Mound district. KENTUCKY Volume 65, November/December 1990 |  | | Journal (article/letter/editorial) | | Coosa County there is an outcrop that carries considerable tin and there has been some mining since 1940..."Cassiterite is the only tin mineral found in the district. The crystals are black or a dark mahogany color...crystals are largely found in the pegmatites of the district. "In the general area the following minerals are...Francisco 14, Calif. One is a salmon» colored massive calcite from Ballarat, Inyo Co., Calif. Another is a dendritic...drusy quartz; the locality is the Aurora Quicksilver Mine in San Benito Co., Calif. A new occurrence for scheelite |  | | Journal (article/letter/editorial) | | make way for a highway. Veins of white and pink calcite (intermixed) were also found in the rock. The pink...first phyllite we ever saw from sers" area, Sonoma County, Calif. It was noted by M. Vonsen in CALIF. JOUR... ranging in in a road cut situated in Randolph County, size from 2 to 4 millimeters. Sometimes it Ala...about 15 is in a calcite matrix and often in small open fissures with quartz and calcite." miles south of...other recognized psilomelane in the Batesville district, In- species as laumontite, thomsonite, datolite |  | | Report (edition) | | (formerly Stoneco, Inc.}, near Junction, Pau lding County, Ohio. Specimen is 3.8 x 2.4 cm with the largest...1999, working with geologists there studying the mining areas of "chrysanthemum stones' (a form of celestine)...Huron River, resulting in the discovery of two County, Ohio, August 2006. John Medici photo. minerals...ineralogical and Lap idary Society of Michigan Stark County Gem & M ineral Club Summit Petroleum, Inc. $1-$100...Marylynn Konowal-Podusiwsky Don Hol lenbaugh Hu ron Hill s Lap idary & Mineral Society VII CONTENTS About |  | | Journal (issue) | | activators (for example, the pink-red fluorescence of calcite from Franklin, NJ and from the Medford quarry here...example, the Mn 2+- 7 induced fluorescence of calcite from Franklin is only seen when the manganese level...an effect on the fluorescence. For example, in calcite, the Mn2+ ions which substitute for the Ca2+ ions...mercury (Hg2+ or Hg22+, or some combination, in the calcite and calomel from Terlingua, Texas), molybdate (MoO42-)...sensitizer. For example, the red fluorescence of calcite from Franklin is activated by Mn2+ with Pb2+ as |  | | Catalog/List | | DRIVE, SAN JOSE, CALIFORNIA 95127 HALITE - Kern County, California (cavernous crystals) GEM ROUGH & SLABS...fl. yellow-green. ARAGONITE 3X4 - Sam Benito County, Califo.fnia - White needles groTdrting in radiating... 2X3 105 3X4 $2.25, 3X4 $3.25 CALCITE Var. POPCORN CALCITE - C-rand River, Paris, Ont„ Canada -...on matrix, very unusual. $2.25 to $3.50 106 CALCITE Var. SAND CALGITE -Badlands, South Dako€a -ifeny...$2.25 107 CALCITE Var. IRRIDESCENT - Knoxville, Io`tJa - Highly irride§cent black Calcite (shows purple |  | | Book (edition) | | YEAR 1687"—DAVID T. DAY, CHIEF OF THE DIVISION OF MINING STATISTICS AND TECHNOLOGY WASHINGTON GOVERNMENT...exten sive deposits, such as coal and iron fields, gold belts, etc., are mentioned in general terms. 688...and consump tion, or better and cheaper means of mining, extraction, and convey ance to market, may in...correspondence has been carried on with geologists, mining engineers, and other local authorities, and various...ALABAMA—Mined. Mineralogical name. Coal, var. bitu minous. Gold. Common name. Remarks. Coal, bituminous coal |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...L lallagua. T im e-L ife’s excellent review of gold, I— I silver and p latinum , well illustrated. ...illustrations. $6 postpaid $20 postpaid (S) (S) T he Last Gold Rush M ineralogy o f Great B ritain & Ireland ...postpaid (H ) F ield Guide to Rocks & M inerals Gold Camps & Silver C ities G reat for beginners, one...Record Book^Dept. O P.O. BOX 1656, CARSON CITY, NEVADA 89702 TEL.: 702-883-2598 * The Mineralogical |  | | Book | | [ [ 23 I 1992 [ 65-128 65-136 65-128 1-96 GOLD-II] 1-112 MMEE•] 25 I 1994 1-80 ARIZONA-I] ...ARIZONA-Ill] 337--400 257-336 [ 257-320 [ [ GOLD-I ] 321--412 ARIZONA-V] 265-352 257-320 353-400...ARIZONA-IV ] 1-102 [ 17 / 1986 [ ONTARIO] NEVADA] [ 16 / 1985 [ 65-128 265-328 261-336 209-272...On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN |  | | Journal (article/letter/editorial) | | 20513 pohwatp@si.edu FLUORITE Elmwood Mine, Carthage, Smith County, Tennessee R egular readers of this...private), the other two species being quartz and calcite. The reason that these species have such a wide...sphalerite, 8.8 cm high, from the Elmwood mine, Smith County, Tennessee. Note the gemmy corners of the...The pieces are all from the fluorspar district, Hardin County, Illinois. Cincinnati Museum Center specimens...these are highly desirable acquisitions. Quartz, calcite, dolomite, siderite, sphalerite, cerussite, pyrite |
|
