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Epidote from
Pikes Peak Granite, Park County, Colorado, USA


Classification
Species:Epidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Epidote data
Locality Data:Click here to view Pikes Peak Granite, Park County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:435818
Long-form Identifier:1:3:435818:3
GUID (UUID V4):9191ede9-b0bc-44fa-9889-3b08df5d1fe7
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADOXT E. Wrrr. HerNnrcu, Department of Mineralogy... Hornblende gabbro. Pikes Peak granite .. . . . Aplite and fine-grained granite . . Diabase Injection...Mile Park pegmatite district, three to twelve miles west of Canon City, Fremont County, Colorado, includes...separate paper. 420 PEGMATITES OF EIGHT MILE PARK, COLORADO 42r area are flanked on the east by hogbacks...major pre-Cambrian rock units are present: Pikes leak granite, Idaho Springs schist, and injection gneiss
Journal (article/letter/editorial)
IVAN JACOBSON 1714 S. Clarkson Street Denver, Colorado 80210 markivanjacobson@gmail.com No pegmatite...5.7 cm, from the Conway Granite, near Red Stone quarry, Conway, Carroll County, New Hampshire. Henry Minot...Parental Granite Pegmatite Class Mineral associates of significance Crystal Peak, Teller and Park counties...counties, CO, USA Crystal Park–Bear Creek, El Paso County, CO, USA Pikes Peak Granite NYF Miarolitic topaz...topaz, amazonite, phenakite Pikes Peak Granite NYF Miarolitic topaz, amazonite, phenakite References
Journal (article/letter/editorial)
MOUNT ROSA AREA, EL PASO AND TELLER COUNTIES, COLORADO. I. THE GRANITES1 E. B. Gnoss2.q.uoE. Wlr. HnrNnrc:r^...pattern'lvithin the Pikes Peak batholith. segregations consist of small elongate bodies of fayalite granite and porphy'1i1is...porphy'1i1is granite. These igneous bodies are transected by northwest-trending dikes of granite and aplite...fayalite granite are fayalite, fluorite and allanite. Sill-like bodies of Windy Point granite contain...accessories similar to those of the porphyritic granite, namely, fluorite, anatase and pyrrhotite, with
Journal (article/letter/editorial)
the summit of Pika Peak looking northwest acro88 the cliff’s of Glen Cove to South Park and the Tarryall...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...I-billion-year-old formbasin was established in the southeril Pikes Peak Batholith. Adapted by the author from Reed, Bickford...Karistrom 1978; Lanthier 1978). Farther south in Colorado, sediments accumulated in decper-water rocks formed...Survey into “Early, Middle, and Late” Eras. In Colorado we because of the subsequent folding and overthrusting
Report (issue)
Precambrian Crystalline Rocks, Park and Jefferson Counties, Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER...Precambrian Crystalline Rocks, Park and Jefferson Counties, Colorado By C. C. HAWLEY and R. A. WOBUS...OF THE SOUTHERN TARRYALL REGION, PARK AND JEFFERSON COUNTIES, COLORADO GEOLOGICAL SURVEY PROFESSIONAL... Late phases of the final intrusion, the Pikes Peak Granite, were accompanied by beryllium-bearing greisens...rocks, Park and Jefferson Counties. (Geology and ore deposits of the southern Tarryall region, Park and
Report (volume)
Geology of the Platte Canyon Quadrangle Colorado By WARREN L. PETERSON CONTRIBUTIONS GEOLOGICAL TO...Biotite-muscovite granite..____-__-----------------_----_-___..Pikes Peak Granite-------------------...monzonite----_----___---------------_--_-------_--Granite __ _________________--___-_--___--_-_---______-_-_...quadrangle. _ In pocket FIGURE 1. Index map of Colorado showing location of the Platte Canyon quadrangle...GEOLOGY GEOLOGY OF THE PLATTE CANYON QUADRANGLE, COLORADO By WARREN L. PETERSON ABSTRACT The Platte Canyon
Report (issue)
COPY Bedrock Geology of the Kassler Quadrangle Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 421-B Bedrock... Bedrock Geology of the Kassler Quadrangle Colorado By GLENN R. SCOTT GEOLOGY OF THE KASSLER QUA.DRANGLE...DRANGLE, JEFFERSON AND DOUGLAS COUNTIES, COLORADO GEOLOGICAL SURVEY PROFESSIONAL PAPER 421-B A survey...survey of the east flank of the Colorado Front Range with emphasis on Cretaceous rocks and on structural...rocks_____________ Granite gneiss and migmatite_ _ _ _________ Sillimanite granite gneiss_________________
Report (issue)
area, Colorado Distribution of Beryllium Tin, and Tungsten in the Lake George area, Colorado By C....spectrographic analyses of veins, greisen, and granite, ~ary Lee mine area ---------------------------------3...BERYLLIUM, TIN, AND TUNGSTEN IN THE LAKE GEORGE AREA, COLORADO By C. C. HAWLEY and W. R. GRIFFITTS Abstract...bodies of Precambrian age in the Lake George area, Colorado. They include greisens that contain high concentrations... and other metals associated with the Redskin Granite. Scheelite deposits in calc-silicate rocks and
Journal (issue)
and fashioning of minerals. By Luke Sattler, Colorado Springs Mineralogical Society Junior Member This...Mineralogical Societies (RMFMS) www.rmfms.org Colorado Federation of Gem & Mineral Societies (CFGMS)...HIGHWAYS IV Pg 7 PRESIDENT’S CORNER Pg 7 Pikes Peak Gem & Mineral Show Pg 12 PPG&M Show Lectures...Pg 14 Continued. Pg 3 COLORADO SPRINGS MINERALOGICAL SOCIETY PO BOX 2 COLORADO May 2012 PICK SPRINGS...SPRINGS, & PACK COLORADO 80901-0002 Page 1 May 2012 CSMS Calendar June 2012 CSMS Calendar Tue., May 1—Fossil
Journal (article/letter/editorial)
SCHEELITE IN THE PRECAMBRIAN OGDEN GNEISSES OF COLORADO TWETO CONTENTS PAGE Abstract ................Precambrian age has been found at several localities in Colorado and Wyoming in recent years. Most of it is disseminatedin...Geological Survey. SCHEELITE IN GNEISSES OF COLORADO I NTRODUCTIO 1407 N ß SCaEEL•TEwas discoveredin...occurrenceat many localitiesin the Precambrianterranesof Colorado and part of Wyoming, show that during the Precambrian...non-graniticportion of the exposedPrecambrianterranesof Colorado,and othersare knownin Wyoming. Severalof the depositshave
Journal (article/letter/editorial)
Tree Root Pocket, Two Point claim, Pikes Peak batholith, Teller County. The Collector’s Edge specimen, Jeff...Mail Stop 150, Box 25046 Federal Center Denver, Colorado 80225 pmodreski@usgs.gov C olorado is, of course...been written as guides to mineral collecting in Colorado. A classic, which went through three major editions...1951 version with a slightly different title), is Colorado Gem Trails and Mineral Guide, by Pearl (1951,...up-to-date guidebook to the state’s minerals is Colorado Rockhounding, by Voynick (1994). Other published
Journal (article/letter/editorial)
Although Colorado may be most noted for rhodochrosite or amazonite, the many varieties and associations...a k e w o o d , Colorado 80225 DIANNE L. K I L E 333 S a l e m Street Aurora, Colorado 80011 C O L O...and J. A. Mur­ phy for an update to Minerals of Colorado: A 100-Year Record (Eckel, 1961). 374 ROCKS... Quartz was a familiar gemstone to many early Colorado residents, as documented by an extensive body...body of literature. The first published list of Colorado mineral localities (in­ cluding quartz) was included
Journal (article/letter/editorial)
ANTHOPHYLLITE WITHIN THE ALBITE-EPIDOTE HORNFELS FACIES. FREMONT COUNTY. cor6nnoo CuRnrBs A. Salorrr...Fremont County, Colorado. The metamorphic grade of these albitic quartzites-the albite epidote hornfels...apparent instability of paragonite within the albite-epidote hornfels facies. INrnorucrrow During the summer...River between Howard and Cotopaxi in southcentral Colorado,discloseda well-exposedisolated Precambrian albiticquartzose...units are older than the Middle Precambrian Pikes Peak granite. These light-colored quartzitic rocks crop
Report (volume)
in Colorado GEOLOGICAL SURVEY BULLETIN 1422-D Nomenclature of Precambrian Rocks in Colorado By...Ogden, 1912Nomenclature of Precambrian rocks in Colorado. (Contributions to stratigraphy) (Geological Survey...Pre-Cambrian. 2. Geology, Stratigraphic Nonmenclature Colorado. I. Title. II. Series. HI. Series: United States... ILLUSTRATION Page FIGURE 1. Map of parts of Colorado and adjoining States showing distribution of Precambrian...1. Classification of Precambrian rock units in Colorado............................. D4 in CONTRIBUTIONS
Report (issue)
Basement in Colorado GEOLOGIC A I, Rock Units of the Precambrian Basement in Colorado By OGDEN TWETO...TWETO GEOLOGY OF THE PRECAMBRIAN BASEMENT IN COLORADO U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1321-A...igneous rocks in outcrop and the buried basement in Colorado UNITED STATES GOVERNMENT PRINTING OFFICE...1912-1983 Rock units of the Precambrian basement in Colorado. (Geological Survey Professional Paper ; 1321-A)...Geology, Stratigraphic Pre-Cambrian. 2. Geology Colorado. QE653.T9 1986 551.7'1'09788 I. Title. For sale
Report (issue)
Badger Flats) Beryllium Area, Park and Jefferson t:-1 Counties, Colorado g ~ s:p ~ I> li:tl ~ GEOLOGICAL...(or Badger Flats) Beryllium Area, Park and Jefferson Counties, Colorado By C. C. HAWLEY GEOLOGY AND ORE...OF THE SOUTHERN TARRYALL REGION PARK AND JEFFERSON COUNTIES, COLORADO GEOLOGICAL SURVEY PROFESSIONAL...association with the late Precambrian Redskin Granite UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...______________ _ Silver Plume(?) Granite ____________________ _ Pikes Peak Granite and associated rocks _____
Journal (article/letter/editorial)
was encountered in mapping the closely related Pikes Peak and Silver Plume granites of pre-Cambrian age...age in the Sawatch Eange of central Colorado (Fig. 1). A comparison of the heavy minerals of the isolated...compare the heavy mineral assemblages of the Pikes Peak and Silver Plume batholiths with a view to correlating...Eight samples of the Pikes Pea,k granite and twelve samples of the Silver Plume granite, from various parts...(Fig. 1) shows only the massive outcrops of the Pikes Peak and Silver Plume batholiths. Table I shows the
Journal (issue)
England Richard C. Erd U.S. Geological Survey Menlo Park, CA Donald R. Peacor University of Michigan Ann...R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur..............................203 R. Barnes Pikes Peak Granite......................................217...SPECIMENS from the collection of the Geology Museum, Colorado School of Mines. See page 242 for a full description... All rights reserved. notes fromthej EDITOR COLORADO-III Here we are with our third special issue devoted
Report (chapter)
South Platte District, Colorado ¡ by Wm. B. Simmons and E. Wm. Heinrich Colorado Geological Survey Department...Department of Natural Resources Denver, Colorado I 1980 Front cover: Wide Angle photograph of the Oregon...2~ pegmatite, South Platte pegmatite district, Colorado. This striking example graphically illustrates...RARE-EARTH PEGMATITE$ OF THE SOUTH PLATTE DISTRICT, COLORADO by Wm. B. Simmons, Jr. Department of Earth Sciences...Michigan Ann Arbor, Michigan 48109 CGS LIBRARY Colorado Geological Survey Department of Natural Resources
Book (edition)
— _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes Peak Region American...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 ¼em 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...Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak Region Seven Keys to...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery
Journal (article/letter/editorial)
SOME MINERAL OCCURRENCES IN THE GUFFEY REGION, COLORADO* Jeuos E. Bnven, []niversity of Michigan, Ann...north-central Fremont County and southeast Park County in the Front Range of central Colorado. Its center is...associatedgenetically with the intrusion of the Pikes Peak granite batholith (Bever, 1952). Eurenile: An unusual...previously not been reported from this part of Colorado. Aggregates of sillimanite needlesin gneissesin...schists of the Idaho Springs formation and the Pikes Peak granite pluton. At the junction of Currant Creek
Journal (article/letter/editorial)
quartz, Manhan River mine, Easthampton, Hampshire County, Massachusetts. Marvin Rausch specimen, Jeff Scovil...branch of the Calumet and Hecla mine, Houghton County, Michigan. A. E. Seaman Mineral Museum (Michigan...JulyIAugust: Vanadinite and wulfenite, Old Yuma mine, Pima County, Arizona. Les Presmyk specimen, Jeff Scovil photo...claim, Lake George intrusive center, Teller County, Colorado. Dave Bunk specimen, Jeff Scovil photo. November/December:... Eagle mine, Gilman County, Colorado. Dave Bunk specimen on loan to the Colorado School of Mines, Jeff
Journal (article/letter/editorial)
THE GRANITIC ROCKS OF THE QUADRANGLE1 PIKES PEAK GENERAL RELATIONS FEW natural features in the west...west are better known by name and form than Pikes Peak, which has served so often as a goal for the pioneer...which it rises 8000 feet above the plateau at Colorado Springs. Moreover, the rapid developments in mining...2 WHITMAN CROss: Intrusive Sandstone Dikes in Granite, Bull. Geol. Soc. of Am., Vol. V., 1894, pp. 225-230;...Colo. Ibid. E. B. MATHEWS: The Granites of the Pikes Peak Area, Bull. Geol. Soc of Am., Vol. VI, 1894,
Journal (article/letter/editorial)
MINERAL COLLECTING BY CAMPER IN COLORADO By LAWRENCE AND HARRIETTE SCHOPPEE 9 Greenbrier St., Springfield...investigating such a claim? We took our Camper to Colorado and now that state rivals Canada in our list of...campgrounds are available, and many new sites in Colorado are being opened every year. Our sleeping bags...described in Professor Richard M. Pearl's book, "Colorado Gem Trails and Mineral Guide." As in any other...before starting to collect in Colorado. Traveling from Massachusetts to Colorado is a trip in itself but don't
 
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