 | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...minerals of the Great American Rift in New Mexico and Colorado. Great American Rift is the name we use for a |  | | Journal (article/letter/editorial) | | 1 C h e mi s t r y . Occurrence of Smaltite in Colorado. By. M. W. ILES(Juhrb. Published on 01 January... in a mineral vein near Gothic, Gunnison Co., Colorado. A sample of smaltite from the surface croppings...variety of siderite occurs on hEmatite, i n the Lake Superior district, either in crusts or in single...Optical Properties and Chemical Composition of Pyroxene and Amphibole. By F. J. WIIK (Jahrb. f. Mine,1883...are given in the annexed table. Angle. A. Pyroxene Group. 1 Malacolite (dark). 2 (yellow).. 3 ,, (light |  | | Journal (issue) | | Colorado Springs Mineralogical Society Founded in 1936 July 2016 PICK&PACK Vol 56 ...... Number 6 Inside...21st 7:00 PM Refreshments provided by the Jewelry Group Guest Speaker: Kevin Witte Topic: Prospecting the...9, “When Ice Ruled Leadville I”, a lecture and field trip led by former Colorado State Geologist, Dr...Register through Colorado Mountain College, http://coloradomtn.edu/event/when-ice-ruled-leadville-i-2/? instance_id=30656...Expo at the Western Museum of Mining & Industry, Colorado Springs. “Spend some family time exploring vendors |  | | Book | | containing no quartz but rich in the feldspar minerals pyroxene and olivine. Old basalts with a coarse structure...rocks contain large crystals, often of the feldspar group and are known as porphyries. The individual crystals...minerals that sometimes occur in this way are quartz, pyroxene and olivine. A common type of traprock is diabase...granite but with no quartz. Sandstone (South Dakota, USA) _9_ A darker rock than granite but with a similar...plagioclase and pyroxene as the dark mineral. Peridotite is a dark rock containing olivine or pyroxene with olivine |  | | Report (issue) | | AND ORE DEPOSITS OF THR BRECKENRIDGE DISTlliCT, COLORADO BY :b_,REDERICK LESLIE RANSOME 'f3lfWASHINGTON.......................... J\'[aterials •. Glacial lake beds ................................ _...........XVIII. Geologic map of the Breckenridge district, Colorado ...... __ .. ________ .... __ .... ________ ....and mining claims in the Breckenridge district, Colorado .. ______ In pocket. '· Outline map of the region...sulphides, south slope of Gibson Hill; B, Ore, Fox Lake tunnel, west base of Gibson Hill. ____________ _ |  | | Book | | 193-256 137-208 129-192 209-264 193-256 [ [ COLORADO-Ill] 177-256 121-184 89-168 1-120 1-88 [ ...177-256 185-280 169-248 [ 425-528 337--400 COLORADO-II] 321--400 337--400 ARIZONA-Ill] 337--400...69-132 65-128 1-64 11 / 1980 20 I 1989 [ COLORADO-I] [ 289-352 385-448 [ AUSTRALlA] 353-504...Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73 |  | | Book (edition) | | swell and emit bubbles (zeolite group, epidote group, scapolite group), some shed flakes (vermiculite...mineral is part of an isostructural mineral group, the group is listed in parentheses after the mineral...class: Almandine, Silicates (nesosilicates, garnet group). A specific problem is posed by the silicates,...occurs solely at the apices of the tetrahedral 4 group [SiCU] ", and the differentiation of the groups...with two tetrahedra joined by a 6 vertex forming a group [SJ207] "; these groups are coordinated with cations |  | | | | amianthus, blue 100 -amianthus, Cape 100 amphibole group 98 annabergite 73 arduinite 119, /2/ argentite...dialogite 42, 42 diamond 5, 6 galena 12, /3 garnet group 76 garnierite 107 gaylussite SO gehlenite 85 gismondine...97, 98 fayalite 75 feldspars 111 feldspathoid group 108 ferrierite 122 ferrimolybdite 63 fluoborite...119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, //3 millerite...pyrophyllite 102, /03 pyroxene group 96 pyrrhotite 12, /2 siberite 96 siderite 42 silica group 31 silicates 75 |  | | Book | | amianthus, blue 100 _amianthus, Cape 100. amphibole group 98 analcite 76, 108, 111 anatase 34, 34 andalusite...coquimbite 60 cordierite 95 galena 12, 13 garnet group 76 garnierite 107 gaylussite 50 gehlenite 85 gismondine...eye 31 fayalite 75 feldspars 111 feldspathoid group 108 ferrierite 122 ferrimolybdite 63 fluoborite...119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, /13 millerite...pyrolusite 34 pyrope 76 pyrophyllite 102, 103 pyroxene group 96 pyrrhotite 12, /2 quartz 28, 31, 95 nepheline |  | | Report (volume) | | Scranton, Pa. Colorado College Publications: Science series, vol. 12, no. 12. Colorado Springs, Colo...Colo. Colorado Geological Survey: Bulletins 4-5, 6. Denver, Colo. Colorado School of Mines Magazine, vol...Colo. Colorado Scientific Society: Proceedings, vol. 10, pp. 211-414. Denver, Colorado. Colorado, University...Science Bulletin, vol. 16, nos. 2-7. Lawrence, Kans. Lake Superior Mining Institute: Proceedings, vol. 18...London. Mines and Methods, vol. 4, nos. 5-10. Salt Lake City, Utah. Mines and Minerals, vol. 33, uos. 6-7 | | | Book | | arnianthus, blue 100 ...amianthus, Cape 100 amphibole group 98 analcite 76, 108, I 11 anatase 34, 34 andalusite...fassaite 97, 98 fayalite 75 feldspars 111 feldspathoid group I08 ferrierite 122 ferrimolybdite 63 fluoborite...85 gahnite 24 galaxite 24 galena 12, 13 garnet group 76 garnierite 107 gaylussite 50 gehlenite 85 gismondine...mesotype 119 metacinnabarite 13 meyerhofferite 54 mica group 104 mica, white 104 microcline 112, 113 miJlerite...pyromorphite 68, 68 pyrope 76 pyrophyllite 102, 103 pyroxene group 96 pyrrhotite 12, 12 quartz 28, 31, 95 quartz |  | | Journal (article/letter/editorial) | | clusters are near the junction of Aqua Fria River with Lake Pleasant. I have a fair supply of these clusters...a letter from Prof. Richard Pearl (Geol. Dept, Colorado College), regarding the specimen I sent you. He...Diamond Mines, at (or near) Murfreesboro, Pike County, Arkansas. At the mines, I was kindly given permission...enstatite (green). Enstatite, a member of the pyroxene group, is a major constituent of peridotite, while...article." CALIFORNIA — A small but most beautiful group of pinkish halite xls has been donated by Sol Shalevetz |  | | Report (issue) | | COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist BULLETIN 12 COMMON MINERALS AND ROCKS...org/10.58783/cgs.b12.hntl2601 EAMES DENVIIIR, COLORADO BROS., STATE PRINTERS 1917 GEOLOGICAL BOARD...Governor of Colorado LIVINGSTON F ARRAND ______________________ President University of Colorado HowARD C...TRANSMITTAL State Geological Survey, University of Colorado, Feb.2.1917. Governor Juli11s C. Giinter, Chairman...honor to transmit herewith Bulletin 12 of the Colorado Geological Survey. Very respectfully, R. D. GEORGE |  | | Book (edition) | | solution will by the laws of molecular attraction group themselves together and gradually build up a definitely...state. As the lava cools these elements gradually group themselves into different mineral molecules, which...of the substance. It must therefore consist of a group of atoms sufficiently large to show all the properties...structure of the crystal, or a chemical molecule, or a group of molecules. For instance in quartz the structural...intergrow according to some definite law, the resulting group is said to be a twin ) crystal. The different members |  | | Book (edition) | | Pbark Professor of Geology Colorado College , Colorado Springs, Colorado FIFTH EDITION A revision...Commission, in and held the Grand Junction, Colorado, in 1970; final revision until the publication...many in the old days, nevertheless, dividual or group prospector to sell survey— and years from discovery...Cripple Creek, Colorado, around turn of the century. (Library, State Historical Society of Colorado) Handbook...oil in Kansas, which scale land investments in Colorado. in the summer in Alaska, in turn orado), |  | | Book (edition) | | progress equally slowly particles of tion will group themselves shaped solid which Crystals can also...state. As the lava cools these elements gradually group themselves into different mineral molecules, which...the resulting The crystals intergrow accord- group is said to be a twin members, ordinarily two...minerals of the HEXAGONAL SYSTEM 41 Apatite Group are the only ones of importance in this class, and...MINERALOGY 54 Fig. 172. Fig. 173. Fig. 174. Pyroxene. Fig. 177. Fig. 176. Fig. 175. Amphibole. |  | | Book (edition) | | Sheahan Konsult International Inc. Marilyn Stark Colorado School of Mines Unni Rowell Exmin Corporation...The largest groups of new terms have been U.S. county names; rock-formation names (mostly North American);...Thesaurus. These include local geographic terms, U.S. county names, rock-formation names, and fossil names.... a. Geographic Coordinates peridot BA olivine group nesosilicates orthosilicates silicates BT minerals...term must be a name unique to one area. Lincoln County is not assigned coordinates in the Thesaurus, because |  | | Book | | wide areas. The molybdenum deposit at Climax, Colorado, occupies an area of less than one square mile...grouped like the petals of a flower. Cleveland County, Oklahoma. Minerals Past and Present (75 percent)...GROUPS. The unique arrangement of atoms in such a group provides a characteristic mineral structure. A few...Brazil. TOPAZ: APATITE: 550-pound crystal; Ottawa County, Quebec, Canada. Crystal Faces The regular, smooth...the parent crystal structure. These misfit atoms group themselves locally, and finally form their own crystal |  | | Book | | 2) - idiomorphic crystal (9 mm); Thomas Range (USA) Text by Rudolf Dud'a and Lubos Rejl Revision of...The Hamlyn Publishing Group Limited, a Division of the Octopus Publishing Group, Michelin House, 81 Fulham...specific gravity (with some exceptions), and mineral group. Hardness was established as the main identification...according to individual specializations. A separate group lists the most often used mineralogical periodicals...more complicated inorganic compounds. The last group is formed by organic compounds. H. Strunz (1970) |  | | Report (volume) | | pi. Price $1.50. o V. The Copper-Bearing Kocks of Lake Superior, by Eoland Duer Irving. 1883. 4°. xvi,...Price $2.70. XI. Geological History of Lake Lahontan, a Quaternary Lake of Northwestern Nevada, by Israel...75. XII. Geology and Mining Industry of Leadville, Colorado, with atlas, by Samuel Franklin Emmous. 18SC...pi. Price $1.00. XVII. The Flora of the Dakota Group, a posthumous work, by Leo Lesquereux. Edited by...and Ten-Mile Mining Districts, Colorado, -by S. F. Emmonj. The Glacial Lake Agassiz, by Warren Upham. BULLETINS |  | | Book (edition) | | Oxides The Halides The Carbonates Calcite Group Aragonite Group The Nitrates The Borates The Sulphates The...consider specializing in some field: one mineral, one group, one locality, a crystal system, or the like. You...has cooled too quickly for any atoms or ions to group into the regular arrangements of the minerals. Obsidian...of a calcium-sodium (plagioclase) feldspar, pyroxene, and olivine, but no quartz. 76 Plate 1...chusetts) “p. 21 Massa- E. 24 “eye” (Westchester County, New York) 5. Marble: dolomitic (Bronx, New York) | | | Book | | 2) — idiomorphic crystal (9 mm); Thomas Range (USA) Text by Rudolf Duda and Luboé Rej Revision of the...The Hamlyn Publishing Group Limited, a Division of the Octopus Publishing Group, Michelin House, 81 Fulham...specific gravity (with some exceptions), and mineral group. Hardness was established as the main identification...according to individual specializations. A separate group lists the most often used mineralogical periodicals...more compilicated inorganic compounds. The last group is formed by organic compounds. H. Strunz (1970) |  | | Book | | primary copper are in the Keweenaw Peninsular, Lake Superior, USA, the largest being I 5 x 7 x 3m (approx....occurred in the Ray mine and in Bisbee, Arizona, USA. Very fine spinel-law twins up to 5 cm in size and...cavities in the Keweenaw Peninsula near Lake Superior, Michigan, USA. Wires, up to 100 mm (4 in) long, come...come from Farncomb Hill near Breckenridge, Colorado, USA. Fine crystals were also found in Berezovsk...were found in Klondike, Alaska; Tuolumne County, California, USA and in Ballarat, Victoria, Australia. Fine |  | | Book | | the University of Colorado and I-Iarvard University, is Professor of Geology at Colorado College. The author...Federation of Mineralogical Societies, and the Colorado Mineral Society. He has collected and prospected...ELEMENTS Arborescent silver on calcite. From Keweenaw County, Michigan, comes this superb example of metal "...specimen, by the iron-oxide coating. This large group is from Galena, Illinois. Marcasite on calcite...magnificent crystals from the classic local ity of Leadville, Colorado, are mostly pyritohedrons, a crystal form |
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