 | | Report (volume) | | ......................................... Graphic granite......................................................................... 1.... Androscoggin County..................................................................................... Cumberland County..................................................... Hancock County...................................................... Lincoln County....................................................... Oxford County............................................... |  | | Book (edition) | | — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■: ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL ★ COLORADO GEM TRAILS AND MINERAL GUIDE ★ SKETCH MAPS BY MIGNON WARDELL PEARL |  | | Book (edition) | | MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive ¥em and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =· - ·, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | | Journal (article/letter/editorial) | | cm long), Beebe Hall, McCain Valley, San Diego County, California. Cal and Kerith Graeber specimen; Jeffrey...feature some of the finest aquamarinesfound in Colorado and other areas of the United States. Aquamarine...mineral at this year’s show, but it is also the Colorado state gemstone, having earned that distinction...spectacular gemstones found on Mount Antero in central Colorado. and project into the white quartz core. The portion...cavity is a crystal-lined cavity suFounded by graphic granite.) Typically, smoky quartz, albite, muscovite |  | | Book (volume) | | Eugene E. Foord U S. Geological Survey, Denver, Colorado 80225 Production editing and design Robert D...The United States Geological Survey at Denver, Colorado, contains essential information not to be had...greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...clear to slightly blue topazes. However, San Diego County, California, is arguably the most important gem-pegmatite |  | | Journal (issue) | | White Horse Ranch to the Blitzen Valley, (Harney County, Oregon} and on the way I picked up some pieces...looked like slag from a furnace. This was in Grant County, Oregon, about 5 miles from Seneca. I was on a...Carnegie Museum, Pittsburgh, Penna. Definition The granite pegmatites are the most common type of pegmatite...same minerals as are found in the igneous rock, granite. In the pegmatites the crystals and grains of these...3x3x8 feet in the Luella Mine near Avon, Latah County, Idaho ; and etc. Origin The crystals have reached |  | | Journal (article/letter/editorial) | | Manasquan, New Jersey, visited Calamity Wash, Yavapai County, and collected several exciting and Figure 7: Arizona...crystals found at the I-IerbbeNo. 2 quarry, Powhatten County, Virginia. Numerous additional finds were made...prelude of fine things to come. AIdrich Prospect, Stoneham Dennis Gross and Ron Arquette of Portland have...crystals (to 60 by 20 by 20 cm). Barbour Prospect, Stoneham Bob Prouty of Brownfield and Tom Killpenny of...associated with smoky quartz in a course, almost graphic, texture. Although some specimens show brownish |  | | Journal (article/letter/editorial) | | 27858, USA 2 Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20013, USA incompatible...Pala, in the Pala District, northwest San Diego County, and constitute mine operations (Fig. 1). The Pala...pegmatiteaplite dikes near Pala, San Diego Co., California, USA. Modified from Webber et al. (1997) London, personal...The general mineralogy and zonation of San Diego County granitic pegmatites were described in detail by...and finally a layer of quartz-perthite graphic potassic granite (e.g., Jahns and Tuttle 1963; Stern et |  | | Book (volume) | | Duane L. Leavitt The Bennett Pegmatite, Oxford County, Maine . ........................................permanent photographic exhibits in the northeastern USA. The Shaubs have been active in ornithological research...transformed by his first visit to the tourmaline-bearing granite pegmatite at Mount Mica in 1952 and Gene eventually...tourmalinebearing Himalaya pegmatite at Mesa Grande, San Diego County, California. Most recently, Gene was gratified...internationally recognized as an authority on granite pegmatites, mineralogy, and geology. Gene authored |  | | Journal (issue) | | ........... 247 LARGE QUAR1Z CRYSTAL FOUND IN COLORADO .................... 247 INDEX TO ADVERTISERS...mining and an opal cucter, died in the Hum• boldt County General Hospital, Winnemucca, Nevada, where he...village of North Chatham, topaz was found. In coarse granite on the summit of H arndon H ilJ, within 50 square...crown. Sure enough the town line between Stowe and Stoneham, Me., ran thru H arndon Hill just as the article...the cool quiet of the fall " Topaz is found in Stoneham on Harnwoods. We dwaddled at the tiny brook . |  | | Journal (issue) | | Crystal Peak area north of the town of Florissant in Colorado. In addition to being a prospector, miner, and...including Jerry Hurianek, whose longtime activities in Colorado are documented in t\vo of his unpublished articles...(Continued on next page) Only $30 - postpaid in the USA Available exclusively from: Excalibur Mineral Corporation...explore other areas in Crystal Peak and elsewhere in Colorado. His wideranging interests in exploring diverse...district in Larimer County. and an astrophyllite locality near St. Peters Dome west of Colorado Springs. (Continues |  | | Journal (article/letter/editorial) | | Maine all belong to the type commonly known as granite pegmatite, its dominant minerals being the same... The rocks associated with the pegmatites are granite gneiss, granites of various textures, and schists...metamorphic minerals are sometimes developed. Into the granite gneisses the pegmatites are also in some instances...both rocks are the same; (2) in the occurrence of granite in all districts where pegmatites are found, and...numerous observed instances of transition from granite to pegmatite. One of the most instructive instances |  | | Journal (article/letter/editorial) | | contain a pegmatite of quartz and feldspar in graphic interGENERAL GEOLOGY growth, which becomes coarser...Brown, on the "Map Showing the Distribution of Granite and Related Rocks in Maine and Locations of Quarries...consists of slates and schists with small amounts of granite and diorite. Associated with these rocks are pegmatites...this area the bedrock is predominantly granite and gneissic granite, with diorite and only small isolated...most of them being about a Feldspar, quartz, graphic granite and foot in diameter. Apatite, light pink, |  | | Journal (article/letter/editorial) | | Apatite, Mt. Mica, and the northern part of Oxford County in Maine. 434 ROCKS AND MINERALS Apparently,...floor at the foot of a column of unquarried graphic granite at tracted attention. On removal of the muscovite...specimens before found in Maine only in Oxford County. Little was done at the quarry from 1929 to the...pocket, as opened, consisted of a cavity in graphic granite lined with platy cleavelandite along the side...G. F . 1884. Topaz and associated minerals at Stoneham, Maine. Amer. Jour, of Sci. 27: 212. Palache, |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s new in Colorado minerals? ......................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John...Natural History for conceiving the idea of a second Colorado issue and for helping a great deal in bringing |  | | Journal (article/letter/editorial) | | GEOLOGY AND PARAGENESIS OF THE LORD HILL PEGMATITE, STONEHAM, MAINE H. H. Wootrno, (lniaersityoJChicago,Chicago...and laboratory study of the Lord Hill pegmatite, Stoneham, Maine, indicates that the pegmatite magma was...rocks. Some,however, are found within bodies of granite or other intrusionsl the Lord Hill pegmatite, for...wo'rno"r GEOLOGICMAP OFTHELORDHILLP56ffitITE MAINE STONEHAM, ZJ**Lm,ff** -- -.{ . lKmm,App.oximolc, Inlcmd...and a large percentage shows an extremely fine, graphic intergrowth with this mineral. This association |  | | Book (volume) | | ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map ................................................................................49 Arkansas County Map .......................................... |  | | Journal (issue) | | Huizing Production Editor Rebecca A. Corpier Graphic Design Patrick L Hufnagle Executive Editors Robert...I. Jacobson, Denver, CO Anthony R. Kampf, l.A. County Museum of Natural History, CA Virgil W. Lueth,...across a local area net\,vork. Subscription offices: USA/North America: Taylor & Francis Group, LLC, 530 Walnut...Copyright Clearance Center (www.copyright.com) in the USA or the Copyright Licensing Agency (www. cla.co.uk)...from the Quarry Connoisseur's Choice: Topaz from Granite Pegmatites, Limoeiro Mine, Virgem da Lapa, Ara~uaf |  | | Book (volume) | | ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...graphite, quartz), and gneisses, as well as numerous granite pegmatites and ore-bearing veins. Prior to the...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a |  | | Book (volume) | | ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...graphite, quartz), and gneisses, as well as numerous granite pegmatites and ore-bearing veins. Prior to the...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a |  | | Report (issue) | | Androscoggin County ______________________ _ Berry feldspar quarry __________________ _ Cumberland County ___...LaChance mines _______________________ _ Oxford County ____________________________ _ Barrett beryl prospect...and prospects-Continued Maine-Continued Oxford County-Continued George Elliot mica mine ________________...Warren feldspar quarry ___________ _ Sagadahoc County _________________________ _ Consolidated feldspar...Hampshire _______________________________ _ Belknap County ___________________________ _ Storer mica prospect_ |  | | Book (volume) | | 56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75...Cantlin, Ellis, [D; Jeannette B. Carillo, Gem Center USA, EI Paso, TX; Gary Christopher, The Prospectors Cache...James D. Lindberg, Las Cruces, NM; Jack Lowell, Colorado Gem & Mineral Co., Tempe, AZ; Steven & Lorna Lukinuk...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill O. Murphy |  | | Book (edition) | | week collecting in the pegme.tite area ot Oxford county, !!Bine, Neil Wintr:lnghal'!l, a pa.st-president...characterized the evenings spent with members of the Oxford County Mineral & Gem Association. N. A. W. Mountainside... James L. Faulkner {Ridlonville) of the Oxford County Mineral & Gem Association, Mr. John E. Duffy and...and help received during past visits to Oxford county. Special thanks must be given above all to those...was originally used by Hauy ( 1822) to denote a graphic intergrowth of quartz and feldspar. It is now applied |  | | Book (volume) | | reproduced or used in any form or by any means—graphic, electronic, or mechanical, including photocopying...Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they...the generous assistance of many residents of that county. My special thanks are extended to Elbert H. McMacken...Tektites. MassivE AND DECORATIVE GEMSTONES Granite, Graphic Granite, Unakite, Quartz Porphyry (Leopardite)...specimen 146. A barite crystal 147. Tektites 148. Graphic granite 149. Unakite and epidote cabochons 150. Obsidian |  | | Journal (issue) | | Apatite, l\lt. 1\lica and the northern part of Oxford County in l\-Iaine. Apparently here in this quarry years...column of unquarried 126 ROCKS and MINERALS graphic granite a ttracted attention. On remo\"al of the 1nuscovite...spechuens before found in :\laine only in Oxfo1·d County.• Little was done at the quarry from 1929 to the...Survey, Bui. 44 5, 100• 10 1. 19 11 . 1 Kuni . Stoneham. 27, 212, Bastin, H a r ntrcl Unl\"ersity. The...l)Ocket as opened cons isted of a cavi ty in graphic granite lined with platy wallil nlar from The The |
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Stoneham, Weld County, Colorado, USA