 | | Report (issue) | | Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...in cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr..._ Igneous rocks _____________________________ _ Quartz monzonite gneiss ________________ _ Granite gneiss...gneiss and gneissic aplite ________ _ Quartz diorite and associated hornblendite_ Boulder Creek granite...Pre-Cambrian deposits _________________________ _ Mine descriptions __________________________ _ 39 39 |  | | Journal (article/letter/editorial) | | Photographs JanuaryFebruary: Rhodochrosite, N’Chwaning mine, Hotazel, South Africa. Martin Zinn specimens, Erica...photo. May/June: Tourmaline on quartz, Cryo-Genie mine, San Diego County, California. Natural History Museum...Museum of Los Angeles County specimen, Harold and EricaVan Pelt photo. July/August: Amethyst and calcite...Ground Hog mine, Gilman, Eagle County, Colorado. Natural History Museum of Los Angeles County specimen...Erica Van Pelt photo. November/December: Elbaite on quartz, Barra de Salinas, Minas Gerais, Brazil. Hyman |  | | Journal (issue) | | Claims, Teller Mountain, Montezuma District, Summit Co., Colorado Benjamin S. Murphy (ben@murphygeo.com),...secondary oxidation minerals are not common in Colorado, the state mineralogy lists three localities for...for pyromorphite in the Montezuma District, Summit County (Eckel et al., 1997): 1. “Pyromorphite, galena...ite, galena, pyrite, sphalerite, chalcopyrite, quartz, and carbonate[s].” (These are all personal-communication...flat-topped mountain on the eastern side of Summit County, in the Montezuma Mining District (Figure 1) |  | | Journal (issue) | | terminal moraine eposit. During an Institute of Lake Superior Geology field trip to the quarry in May 200 I...Walter Mayfield manganese prospect, Jeff Davis County, Texas. men ofa black botryoidal manganese oxide...located about 22 miles south ofVan Hom in Je ff Davis County, Texas (Baker I 934). However, the mineral is ca...fluorite (McAnulty 1974) also no description and quartz. The quartz Antero Aquamarines By Mark I. Jacobson,...a few copies left, no more after about August. Mine ral News July 2003 Fig. 2 Romanechite crystals |  | | Report (issue) | | COLORADO STATE GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist BULLETIN 9 GEOLOGY AND ORE DEPOSITS...BONANZA DISTRICT SAGUACHE COUNTY COLORADO By HORACE B. PATTON 1915 DENVER,COLORADO EAMES BROTHERS, STATE...DOI: https://doi.org/10.58783/cgs.b09.vtso7767 Colorado State Geological Survey. Bulletin No. 9, Plate...rnor of Colorado LIVINGSTON FARRAND ______________________ President University of Colorado HowARD C...TRANS:\IITTAL ST.I.TE GEOLOGICAL SuRVEY, UNIVERSITY OF CoLORADO, December 2, 1916. Governor George A. Carlson |  | | Journal (article/letter/editorial) | | the replacement beds of the Magma Copper Mine here in Superior, Ariz. They are very scarce and are unusual...very rare."—sent in by W. E. Lassiter, Box 1015, Superior, Ariz. The barite crystals are very good. They...crystals embed some of the barite. Superior, in N/E Pinal County, is in southern Arizona. CALIFORNIA...tourmaline, Gem Star Mine, Pala, Calif."—on label. Pala, in N / W San Diego County, is in southern California...California. COLORADO — "I am sending two crystals of blue barite, one has a fl. coating. Will you please |  | | Book (volume) | | instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...from 18’ to 27’ long. In addition, gem Garnets, Quartz crystals, Topaz and Tourmaline add to the fascination...and a Southern Section, covering a somewhat larger area around Harney Peak. The northern section is characterized...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 |  | | Report (issue) | | Peak, Patagonia, and Superior districts, and there are several deposits in a small area on the plateau of...of Arizona, in Coconino County. PRODUCTION. The total production to December 31, 1918, in Arizona of...Thurston & Hardy, in the Ash Peak district, Greenlee County; the Manganese Development Co., Wheeler, U. S.... Maricopa County; the Arizona Manganese Co., operating the Howard claims, in Mohave County; the Hardshell...Hardshell mine, in Santa Cruz County; the Bunker and Burmeister claims, in Yavapai County; the Dobbins claims |  | | Book (edition) | | mmed at Broken Arrow aud Trout creek, in Sc. Clair county. The strata in this field are more faulted und...prong of Canoe creek, in St. Clair county, to Ha\sop creek, in Bibb county, a distance of 60 miles. Down to...to Helena, in Shelby county, the field has an average width of 5 or 6 miles. Below that point the width...miles being in the latitud" of Blocton, in Bibb county. The south ern end of this field has a greater...Jefferson county; Helena, Montevallo, and Brierfield, Shelby county; and at Blocion. Bibb county. The Warrior |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...MILFORD, area creek gravels and alluvial deposits, rare⎯Diamond. CLINTON COUNTY WILMINGTON, area of Todd’s...Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships of Washington, Virginia, Bedford,...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...DELAWARE, area Co. exposures of blue clay, as clusters and nodules⎯Pyrite (crystals sharply cubic). FRANKLIN |  | | Book (edition) | | gem stones mon dull are as hard or harder than quartz, a com- mineral everywhere present as dust which...Hardness Scale 6. Orthoclase 1. Talc 2. Gypsum 7. Quartz Topaz Corundum 10. Diamond 3. Colcite 8. 4...testing "scratched" scratch was Many which is area, Wet is calcite, a pocket knife blade tests...Your will scratch orthoclase feldspar but not quartz. In making hardness appears to be a scratch paper...the general arrange- ment of these surfaces. Quartz and amethyst, for example, are frequently crystallized |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...MILFORD, area creek gravels and alluvial deposits, rare⎯Diamond. CLINTON COUNTY WILMINGTON, area of Todd’s...Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships of Washington, Virginia, Bedford,...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...DELAWARE, area Co. exposures of blue clay, as clusters and nodules⎯Pyrite (crystals sharply cubic). FRANKLIN |  | | Report (issue) | | Provenance and Transport of Lower Paleozoic Midcontinent Quartz Sandstones.................22 Geological Processes...............................................52 Summit Proppants ..................................................................................52 Superior Silica Sands ...................................column showing the lithostratigraphic units in Sauk County, Wisconsin ........10 Stratigraphic column for...Outcrop of dune facies of St. Peter Sandstone at old mine entrances in Pacific, Missouri, where it is still |  | | Journal (article/letter/editorial) | | MICHAEL J. GOBLA 19055 East Bethany Place Aurora, Colorado 80013 gobla@copper.net Unless otherwise noted...view showing the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded...igneous, and metamorphic rocks of many types. This area of the state contains skarns, pegmatites, and metallic...are found. As the fourth-largest state (with an area of 147,046 square miles and a population of less...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal |  | | Journal (article/letter/editorial) | | Museum of Nature and Science 2001 Colorado Boulevard Denver, Colorado 80205-5798 jmurphy @ dmns.org PETER...Survey MS 150, Box 25046 Federal Center Denver, Colorado 80225-0046 pmodresk @ usgs.gov Unless otherwise...to 2000) J oin us for a gemstone tour around Colorado! Our field trip takes us from east to west in...in the same way you may have toured through Colorado on a mineral collecting trip. This route, from the...gemstones are known to occur. We cannot discuss every Colorado gemstone occurrence; rather, this is a general |  | | Report (issue) | | AND ORE DEPOSITS OF THR BRECKENRIDGE DISTlliCT, COLORADO BY :b_,REDERICK LESLIE RANSOME 'f3lfWASHINGTON...__ .. _._ ........................... _..... .. Quartz monzonite porphyry ..... _._ ......... _.. __ ...__ ... _..... ______ . ___ . __ .. _. _. _____ _ Quartz monzonite porphyry (intermediate type) ... _______...IlL-Petrography of the igneous rocks-Continued. Quartz monzonite porphyry (intermediate type)-Continued...Alteration of monzonite porphyry of the Wellington mine ___ .................. __ ............ __ . . . |  | | Book (volume) | | ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare alluvial Diamond. THEBES: c area gravel...jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils; d Coal City, on area mine |  | | Book (volume) | | ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare alluvial Diamond. THEBES: c area gravel...jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils; d Coal City, on area mine |  | | Journal (issue) | | HEMATITE AND GOETHITE Exploring New Mexico’s U.S. 60 Mine Mark Leatherman 42 PROUSTITE 36 58 THE MINERALS...that for a collector to choose one species like quartz, calcite, or time had come from meteorites as evidenced...for its tabular hematite like this specimen with quartz. evolved in the warm, shallow seas billions of...that result in the huge hematite iron deposits we mine today? Everyone knows that iron and oxygen in a...limestone, and fluorite being present in the general area of the Midwest. This helped set the stage for the |  | | Report (issue) | | DEPOSITS NEAR SUPERIOR, ARIZONA. By F. L. RANSOME. INTRODUCTION. The little hamlet of Superior is in the...the south-central part of Arizona, in Final County. About it centers the present activity of the Pioneer...King, were recorded in 1875. In a straight line Superior is 11 miles northwest of Ray (see fig. 11), but...more open country around Florence and Phoenix. Superior is on the north bank of the westward-flowing Queen...Contour interval SOOfeet' FIGURE 11. Outline map of Superior, Ariz., ana vicinity. glomerate, a heterogeneous |  | | Report (issue) | | Ariz., Ariz. Bur. Mines Bull. 148, 1941. Apache County 2: 17 Gregory, H. E.-Geology Prof. Paper 93, 1917...the Navajo country. U.S. Geol. Survey Cochise County 3:04 Ransome, F. L.-The geology and ore deposits...Ariz., Ariz. Bur. Mines Bull. 143, 1938. Gila County 4:03 Ransome, F. L.-Geology of the Globe copper...Arizona: U.S. Geol. Survey Bull. 771, 1925. Graham County 5:25 Ross, C. P.-Geology and ore deposits of the...district, Graham County, Arizona: U.S. Geol. Survey Bull. 763, 1925. Greenlee County 6:05 Lindgren, Waldemar-The |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...4B^ Diamond M Tourmaline ^P Ruby. Sapphire O Quartz crystal ^J^ Garnet __ Azurite, Malachite, Chrysocolla...with respect to one another. gem minerals The quartz gems, such as amethyst, form crystal prisms with...another at 60 degrees and intersected by a fourth Quartz and vertical axis at right angles to the other...other, light) FELDSPAR TWINS I J PHENACITE QUARTZ CRYSTALS ffrl (^h /&> ^& \b^ ^ VESUVIANITE |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...Diamond M Tourmaline fQl Ruby, O Sapphire Quartz crystal 'y^ Garnet — Azu rite, Malachite, Chrysocolla...Maryland; Professor Richard Pearl of Colorado Springs, Colorado; and Professor Jack Hanahan of Belmont...from Derbyshire or, perhaps, a pyramid of smoky quartz from Cumberland. The next it may be rock crystal...Talc 6. Orthoclase feldspar 2. Gypsum 7. Quartz 3. Calcite 8. Topaz 4. Fluorite 9. Corundum |  | | Report (volume) | | Deposits of minerals of wide distribution, such as quartz and calcite, have been omitted, except those that...A. F. Rogers, Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut...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 |  | | Journal (issue) | | Volume 44, Number 04 April 2014 FEATURES Lake Superior agates are a large part of the displays at the...GEM & MINERAL SHOW - SPRING Holiday Inn - Orange County Airport, 2726 S. Grand Ave., SANTA ANA, CA 92705...Show Hours: Fri. & Sat. 10 - 6 • Sun. 10 - 5 Colorado Topaz Photo by Jeff Scovil© 2014 West Coast...PM Reader Letters IELD NOTES EDITORIAL the mine where we could oversee the valley and stream when...there?) Rock & Gem has been a favorite magazine of mine for years, so it’s a wonderful thing to have it |
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