 | | Report (volume) | | Medd______ Meddelelser nouveau, etc. November Nummer northwest Pamph_______ Pamphlet Mag_________ Magazine...Technological, etc. temporary Tennessee Territory,- Territories, Territorial Texas Territory of Hawaii Topographic...Bulletin, v. 11, nos. 2-4; 17. Berkeley, Calif. Canada Department of Mines and Resources, Mines and Geology...Annual Report for year ending 3/31/47. Ottawa, Canada. Canada. Geological Survey : Bulletin nos. 9-11 ; Economic...48-24. Ottawa, Canada. Canadian Alpine Journal, v. 31. Banff, Alberta. Canadian Field-Naturalist, v. |  | | Journal (article/letter/editorial) | | aohroite bar ite datolite hiddenite petal ite spodumene actinolite benitolte demantoid pol Incite staurolite...mineral localities in various parts of the country, Canada, Mexico, etc. Readers w i l l i n g to volunteer... and Salisbury, N . Y. North Carolina — C. C. Van Dyke, Route 4, Boone, N . C. 28607. I will be glad...minerals in Wash. Canada—Sean A. Lochnan, 792 Byron Ave., Ottawa 13, Ont., Canada. Our dealers carry |  | | Report (issue) | | Climate and vegetation 16 work Acknowledgments Field 1 17 17 ~ GEOLOGIC FEATURES Previous investigations...__ Roblar leucogranite Other intrusive bodies Pegmatite and aplite dikes Economic significance __ ____...Fluorine minerals ._ Gem minerals Gem-bearing pegmatite deposits Distribution and general features Summaries...quartz crystal) and quartzite Inner zones of pegmatite deposits Massive quartz bodies (including veins)...rocks Meta volcanic rocks - Gabbroic rocks Pegmatite deposits Dumortierite-bearing rock Products and |  | | Report (issue) | | rapid and inexpensive processes such as photostat, van dyke, and ozalid, but some were duplicated by the more...studied and •pPed in 1947 s. Oeolosical Surve7 field parties ill cooperat.ian with the State BigbwaJ'...Cox, W. B. B. Beu()n, '1'. A. ~teftn, and R. B. Van Alstine. Area studied and •pped 1943-46 b7 D. C...7/23/4S Su.rYeY ccapleted of part ot Coosa coal field, .Ua. !bgt 1 Jlap! dittribllted Oeolo17 of the...the Coal Ci t7 ...S FairYin Basin!, Cooea coal field., St.. Clair Coant7, Alabala, b,r · ll. E. Rothrock |  | | Journal (issue) | | lllDl.ight and the flag ia full of aw,." -Henry Van Dyke. Vol. 21, No. 7 JU~Y, 1946 ,. Whole No. 180................................429 JEFFERS AGATE FIELD IN NEW MEXICO. By Lottie M. Neely ................will be our 20th Anniversary Number). TIMMINS, CANADA, TAKES CARE OF ITS MINERS • a One of the finest...in a large dry wash extending downhill to the northwest from D ugway Pass, at the intersection of the...be true geodes at all, but are fos- CONCLUSIONS Field study of the Dugway Geode Placers indicates that |  | | Journal (issue) | | 326 Rhodizite-Londonite from the Antsongombato Pegmatite, Central Madagascar Brendan M. Laurs, Federico...Carlsbad, California A. A. Levinson Calgary, Alberta, Canada Thomas M. Moses New York, New York SUBSCRIPTIONS...the submission of articles on all aspects of the field. Please see the Guidelines for Authors in the Summer...Gems, Los Angeles. Photo © GIA and Harold & Erica Van Pelt. Color separations for Gems & Gemology are by...a grateful subscriber! Sharon Wakefield, G.G. Northwest Gem Lab Boise, Idaho Reply: We thank Sharon for |  | | Journal (issue) | | aprivate collection. Photo 0 1985 Harold d Erica Van Pelt-Photographers, Los Angeles. Typesetting for...the submission of articles on all aspects of thc field. Please see the Suggestions for Authors for preparing...VALUABLE ARTICLE AWARD ALICE S. KELLER Editor T he field of gemology, like the people who comprise it, encompasses...as is-once again-the kindness of Harold and Erica Van Pelt for donating so much of their time and expertise...Most of this production has come from two major pegmatite regions: (1) the Araguai-Itinga and Araguai-Salinas |  | | Report (issue) | | was found at Greaterville in 1924. Pinal County-Canada del Oro placers. Santa Cruz County-Oro Blanco,...quantities with gadolinite and native bismuth in pegmatite. Yavapai County-Bradshaw Mountains, ~wa~low min...Eureka dIstnct. 45 nules west of Prescott, in pegmatite. PYRITE FeS2. Bright brass-yellow. Luster metallic...district, sparingly in oxidized ore. Miami district Van Dyke mine, with chrysocolla. Also from the "79" mine...district, as blue, red, and white material in a pegmatite dike with andalusite. Pinal County-Reported from |  | | Report (issue) | | communities and for people who live in island territories under U.S. administration. Library of Congress...and Harold Bennett, Chief, Minerals Availability Field Office. Numerous Bureau individuals associated with...herein. Personnel in the Minerals Availability Field Office, Denver, CO, and Division of Minerals Availability...development was the primary responsibility of Bureau field evaluators and contractors. Mineral commodity specialists...(MAS), began in 1971, at the Bureau’s regional field operations centers. The objective was to build a |  | | Book (edition) | | rock or mineral that is casually picked up in the field. Recently, one researcher has said that the effort...occurrence of this metal, the valley was called "Canada de Hierro," or iron valley. Silver mines of great...sometimes called the Arizona mines, are situated northwest of the Cababi mines about 60 miles, and 40 miles...spangolite. Palmer (1909) describes arizonite from a pegmatite about 25 miles southeast of Hackberry, Mohave...southwestofWickenburg, and one and one-half miles northwest of the Angel mine. Garnet-Mr. J.L. Hubbell of |  | | Book (volume) | | English translation of a text-book by Cronstedt gave field-spar. In his text-book in English, Kirwan (1784)...its name from the locality Bytown (now Ottawa), Canada. Anorthite is compounded from the Greek negative...separately as barium felspars (p. 166). In some pegmatite microclines the rare alkalies may reach major... The clear yellow crystals from a miarolitic pegmatite are of gem quality and as a consequence have often...Orthoclase microperthite (moonstone) E. Spencer. pegmatite, Ambalangoda, Ceylon (Spencer, 1937). Anal | | | Book (edition) | | rock or mineral that is casually picked up in the field. Recently, one researcher has said that the effort...sometimes called the Arizona mines, are situated northwest of the Cababi mines about 60 miles, and 40 miles...spangolite. Palmer (1909) describes arizonite from a pegmatite about 25 miles southeast of Hackberry, Mohave...southwest of Wickenburg, and one and one-half miles northwest of the Angel mine. Garnet—Mr. J.L. Hubbell of...Hurlbut (1936) first describes bermanite from a\ pegmatite on the 7U7 Ranch, Yavapai County. 1938 The orebody |  | | Journal (issue) | | ... 485 by R. J. Bowell, 0. Ermolina, W van der Plas, J. van Us & M. Steiner The best zincite crystals...deposits have long been exhausted and the ability to field-collect fine "new" specimens is only a very distant...coffee table books (see our 500 color photos in Van King's masterwork Nature's Garden of Crystals). Published...Robert J. Bowell ' Olga Ermolina 2 Wim van der Plas 3 Jesper van Us 3 Marius Steiner 4 The Kaokoveld copper...Okandawasi, Onderra, Ongankwa and Kandesei pits and the Van der Plas and Otuani mines. These mines have been |  | | Book (edition) | | Engineers and technicians familiar with the field were very few, and their knowledge was limited usually...Perhaps the greatest strides have been taken in the field of mineral beneficiation. In 1925 we did not hav'e...ceramists; and personal observation made in the field. In fact, every available source of infor¬ mation...no previous at tempt has been made to cover the field of the technology of the nonmctallic miniuals, at...“Silica and the .Silicates” covers a part of this field, but it |  | | Journal (issue) | | Black Bay Opal FACETING DESIGN: Nested Triangles FIELD TRIP: Orbicular Granite in New Mexico “Triassic... Nested triangles in sunstone by Arya Akhavan FIELD TRIP Sandia Mountains Orbicular Granite...........Park is a “Triassic Park” by Steve Voynick 12 Field Notes.......................................6 Lapidary...years for $66.95. Add $15.00 per year postage for Canada and all other foreign countries. Submission of...EDITORIAL A Field Trip Like an Easter Egg Hunt Like an Easter egg hunt is a Rockhound’s field trip, They |  | | Book (edition) | | contained a large mass of coarse orthoclaserich pegmatite associated with the quartz monzonite porphyry...about 10 miles wide by 75 miles long, extending northwest and southeast from Cameron along the Little Colorado...in granite in sericitized veins (Schwartz, pegmatite (Frondel, 1964). Cerbat Mountains, Kingman Feldspar...Near Willow Springs Ranch, Oracle Junction, in pegmatite with schorlite (Robert O’Haire, pers. comm., 1972)... 1960). Yavapai County: Eureka district, in pegmatite knots on the 7U7 ranch near Bagdad, with triplite |  | | Report (volume) | | Brunswick. Agr. Indus. Prog. Canada-Agrtcultural and Industrial Progress m Canada. Montreal, Quebec. Ala....Submarme Geology Report Berkeley, Cahf Canada Dept. Mmes, Mmes Br Pub -Canada Department of Mmes, Mmes Branch...Pubhcatwns. Ottawa Canada Dept Mmes and Res., Mmes and Geology Br Ann Rpt, Natl Mus Bull-Canada Department of...Report 1 Nati9n~l Museum of Canada. Bulletm. Ottawa. SERIALS 5 Canada Dept Mmes and Tech. Surveys...Ser.-Canada Department of Mmes and Techmcal Surveys, Mmes Branch Memorandum Series. Ottawa. Canada Domimon |  | | Book | | neering projects. Since no summary of the entire field of applied mineralogy has appeared until now, the...negatively-charged electrons, e.g. metals and metalloids. van der Waals bonding (inter-molecular bonding) Electrically-neutral...diamond I C - - - - - - - - - - - - ~ Ar #eta/lie van der Waals Figure 26 Schematic representation of...which act between neutral structures are known as van der Waals forces. They are always present in addition...conductivity). Under the influence of an applied electrical field, ions in ionic crystals diffuse in a preferred direction | | | Book (edition) | | contained a large mass of coarse orthoclaserich pegmatite associated with the quartz monzonite porphyry...about 10 miles wide by 75 miles long, extending northwest and southeast from Can1eron along the Little Colorado... Rare Metals mine and Columbite prospect, in pegmatite with gadolinite (Heinrich, 19?0) ;_ McCo_nnico...district, Consolidated Spar mine, 111 granite . pegmatite (Frondel, 1964). Cerbat Mountains, Kingman Feldspar...Near Willow Springs Ranch, Oracle Junction, in pegmatite with schorlite (Robert O'Haire, pcrs. con1m., |  | | Report (issue) | | California, Bulletin 156 should serve a very broad field of interest. Explorer, producer, and user of mineral...the intention of Bulletin 15(i to cover the whole field of mineral resources and mineral industry. If earlier...fill a lon!::-ielt need of a summary of the whole field of mineral commodities in California. It is Olaf...deposits, in the Magmatic deposits Examples Pegmatite : High Sierra bodies, containing gem minerals...rock formations must first be determined through field study of stratigraphy and structure. Each rock unit |  | | Book (edition) | | Anthony, Sidney Williams, and Richard Bideaux. The field of mineralogy has undergone many changes since the...six other special lists of minerals, such as pegmatite minerals, contact-metamorphic minerals, and secondary...(1970) of blue, red, and white material in a pegmatite dike with andalusite from Grand Wash Cliffs, Red...labradorite, at Red Mountain, twenty-five miles northwest of Flagstaff. Red Mountain is an eroded cinder...Spring, in the foothills, probably as a vein pegmatite dike. This amethyst-bearing property is owned |  | | Book (edition) | | is not only a large but a particularly fertile field for the engineer and technologist in the mineral...young engineers with specific training in this field. Problems in the production of industrial minerals...Geological Survey, the U. S. Bureau of Mines, and the Canada Department of Mines and Resources have cooperated...New York, N. Y. February 1, 1949 of the growing field for engineers Samuet H. Dorpear. CONTENTS D...for abrasives cover such a large and diversified field that only an exhaustive treatise could hope to cover |  | | Journal (issue) | | PLUME R&G KIDS Labradorescence Oregon Agate FIELD TRIP: Sandia Mountains (NM) Travertine FOSSILS A...botryoidal or druzy pockets. (Philip Stephenson photo) FIELD TRIP Feather Ridge Plume Agate...................full-service Utah rock shop by Steve Voynick 12 Field Notes ............................................years for $66.95. Add $15.00 per year postage for Canada and all other foreign countries. EDITORIAL CONTACT...reactions? —Tom Noe via e-mail 6 www.rockngem.com Field Notes.indd 6 LYNN VARON Managing Editor JIM BRACE-THOMPSON |  | | Journal (issue) | | the submiss~onof art~cleson all aspects of the field. Please see the Suggestions for Authors for preparing...of professional photographers, Harold and Erica Van Pelt. Our sincerest thanks for their invaluable contribution...articles and given many lectures on all aspects of the field. He is particularly well known for his expertise...materials. For example, advancements made in the field of plastics, particularly the use of balzclite plastic...(particularly in the early Deco motifs), Boucheron, Van Cleef & Arpels (a relatively young firm at the time) |  | | Journal (issue) | | ................. 34 Articles and puzzles 12 Field Notes.......................................6 Lapidary...years for $66.95. Add $15.00 per year postage for Canada and all other foreign countries. Submission of...Community College class that offered rockhounding field trips to anyone who paid the college fee. She was...Founder continued on page 16 6 www.rockngem.com Field Notes.indd 6 Rock & Gem 1/24/14 10:13 AM This...Annual show; Owyhee Gem & Mineral Society; O’Conner Field House; 2200 Blaine; Sat. 10-6, Sun. 10-5; adults |
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