Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Prehnite from
Star Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA


Locality type:Mine
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Star Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:132048
Long-form Identifier:1:3:132048:0
GUID (UUID V4):7bb89af0-4481-4f1c-9836-f9cc31149181
Nearest other occurrences of Prehnite
0.0km (0.0 miles) Cape Mine, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
0.9km (0.5 miles) Clark Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
1.9km (1.2 miles) Manganese Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
3.9km (2.4 miles) New York and Michigan Exploration, Grant Township, Keweenaw County, Michigan, USA
4.0km (2.5 miles) Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
4.7km (2.9 miles) Lac La Belle exploration, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
5.0km (3.1 miles) Aetna Exploration Copper Mine, Grant Township, Keweenaw County, Michigan, USA
5.4km (3.4 miles) Vulcan Exploration Copper Mine, Grant Township, Keweenaw County, Michigan, USA
7.1km (4.4 miles) Hard Rock fissure, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
7.2km (4.4 miles) Point Prospect, Grant Township, Keweenaw County, Michigan, USA
References
Reference Search (possible matching items)
Book
Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation
Journal (issue)
PUBLISHED MONTHLY 1938 CONTENTS FOR MAY, 1938 PREHNITE • • • • • • • • • • • • • • • ...132 A MINERALOGICAL TRIP THROUGH THE M ICH IGAN COPPER COUNTRY. By Kiril Spi roff . . . . . . . . . ...... . . . . .. . ......... . .. . .. 144 ANCIENT MINE SAVED GREEK CIVI L I ZATION . ............... 147...131 PREHNITE One of the loveliest of green minerals which always excites admiration is prehnite. It must...green, as prehnite is also found in a gray, white, yellowish and even a bluish color. Prehnite is an old
Journal (article/letter/editorial)
Michigan Mineralogy: A LOCALITY INDEX TOM MORRIS, JR. 4553 Shenandoah Allen Park, Michigan 48101 Tom...occurrences. These localities have been listed by county; and, strictly for convenience, the list has been...compiling this information was The Mineralogy of Michigan (Heinrich, 1976), which should be consulted by...locality labeling of Michigan specimens. It should be pointed out that the list of Michigan mineral localities...None­ theless, with the aid of a good state or county map, plus local inquiries, the list could be helpful
Book
Lakes States Wisconsin, Indiana, Illinois, Michigan, by June Culp Zeitner $5.95 Gem Guides Book...our knowledge and enjoyment of this great owners, mine and quarry operators and science by collecting....which operate in many states are not as likely to grant permission to collect as the former locally owned... and Michigan. Dow Chemical has reported finding diamonds in the kimberlites of upper Michigan, and vast...shoreline on both Lake Superior and Lake Michigan. Michigan is the state with the most shoreline on these
Journal (article/letter/editorial)
Lake Superior copper deposits, home to the world’s largest occurrence of native copper. Indeed, many...sport flecks of native copper, and specimens exist of datolite intergrown with copper crystals, but that’s...that’s getting ahead of the story. Michigan’s Copper Country datolite has been collected, prized, fashioned...in celebrating the rich mineral heritage of the Keweenaw Peninsula’s datolite by diving into this article...Dyl II, Director A. E. Seumnii Mineral Museum Michigan Technological University 170 ROCKS 81MINERALS
Report (issue)
filling from a basaltic Houghton County lava flow. Small specks of native copper occur as inclusions near the...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...creation of the Bicentennial Commission.) The double star Bicentennial symbol ( also on back cover) is derived...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr
Journal (issue)
with a large mass of native copper in the Quincy mine ca. 1918. (Michigan Technological University Archives...of Donald Pearce (1941-1989) The “Copper King” The MICHIGAN COPPER COUNTRY L. W i l s o n New Mexico...t a n l e y J. D y l II Seaman Mineral Museum Michigan Technological University % 1992 T h e M in e...COVER: Native copper crystal group, 13.6 cm, from an unknown mine in the Michigan Copper Country. Richard...Burbank) wrote the classic work on the copper deposits of Michigan in 1929. Photo by Wendell E. Wilson.
Book (volume)
Dahlonega Co. and Rabum Co., and  the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE:...agate, (banded, various colors), jasper. BIBB COUNTY MACON:  at Holton Quarry, 7½ mi. NWagate;  N
Book (volume)
600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils;
Book (volume)
600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods...gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason Cr.⎯fossils;
Report (volume)
64-66 Supt.of Docs. No.: 119.3:1309 1. Geology-Michigan-Isle Royale National Park-Guide-books. I. Title...Lake Volcanics ______ Rock Harbor-Tobin Harbor area __________ Washington Harbor area_______________ An ancient...ancient alluvial fan the Copper Harbor Conglomerate ________ Tilting and breaking the rocks _____________...minerals of special interest ____________ Native copper widespread but not abundant ____ Chlorastrolite...Chlorastrolite Michigan's state gem __________ Prehnite the little pink pebbles _____________ Agate an array of colors
Catalog/List
good stuff that used to come out of the Marencl mine, ~ut the price is a whole lot better. specimens...laboratory or grew as a secondary mineralization In a copper leaching operation at one of the mines In Arizona...speclmena are $3.00 eaoh. CLEANED COPPER AND MALACHITE: Southwest Mine, Bisbee, Arizona: I've had these...around to it! These are nice specimens full of copper with lots of bright green malachite and other associated...through a quick acid bath then a final cleaning in copper bright. The end result Is quite spectacular and
Journal (issue)
Menlo Park, CA Donald R. Peacor University of Michigan Ann Arbor, Ml George W. Robinson Natl. Museums...R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University........................... 215 by S. G. Bywater Copper Country microminerals............................Behnke Famous mineral localities: the Corrego Frio mine and vicinity, Minas Gerais, Brazil ...............Topaz-Mineral Exploration (1605 Hillcrest, Grand Haven, Michigan 49417) wishes to announce that he is now stocking
Report (volume)
colors. Impurities, such as iron, chromium, and copper, also tint the minerals. Care should be taken in...STONES Ruby, spinel, emerald, sapphire, star sapphire, star ruby, rutile, and quartz are gem stones that...Del Norte County; Trinity River, Trinity County; Spanish Creek and Gopher Hill, Plumas County; Placerville...Dorado County; Cherokee Flats, Yankee Hill,and Oroville, Butte County; French Corral, Nevada County; Indian...Indian Gulch and Volcano, Amador County; and Alpine Creek, Tulare County. Other western localities are:
Report (issue)
STATES GEOLOaiCAL SURVEY CLARENCE KING DIRECTOR THE COPPER-BEAEING ROOKS LAKE SUPERIOR Bv ROLAND IDXJER...ilhistrations of Prof Roland D. Irving's memoir on the Copper-Bearing Rocks of Lake Superior. Very respectfully...herewith the manuscript of my memoir on the Copper- Bearing or Keweenawan Rocks of Lake Superior...Extent and General Nature of the Keweenaw Series Lithology of the Keweenaw Series Section I. Basic Original...III. Summary View of the Original Rocks of the Keweenaw Series Section IV. Detrital Rocks Chapter IV.
Journal (issue)
Scovil photo. Vanadinite, 2.4 cm, from the Apache mine, Arizona. Collected by Evan Jones; Jeff Scovil photo...Miglioli photo. Fluorite, 7.4 cm, from the La Barre mine, France. Collected by Aubin Cosson; Niels Brouwer... from left: Caledonite, 1.1 cm, from the Reward mine, California. Collected by Jeff Lines; Ben DeCamp...Thrill of Discovery by Wendell Wilson Epilog: On Mine Safety UThe Field-CollectorsV Anthony J. Albini...the words of the original discoverers. Adelaide Mine, Tasmania, 1971, 2012 Albert Chapman wrote one such
Book (edition)
describes sites under of the nearest town and county. and the many maps included book contain such...of opal or labradorite, the starry splendor of star sapphire and garnet, or the dramatic eye effect...Obviously malachite, an ore of the heavy metal copper, or hematite, an ore of iron, will "heft" heavy... minum oxide); carbonates, such as malachite (copper car- bonate); phosphates, such as apatite; or...hydrofluoric acid which it gray and pitted. To from prehnite, heat the mineral in a closed glass tube. Smithsonite
Journal (article/letter/editorial)
Blanchard Mine, Bingham, New Mexico T here once was a time when most green acicular copper minerals...originating at what was then known only as the Blanchard mine, Bingham, New Mexico. Oh, for those simpler times...Blanchard mine has been selected for this issue. Brochantite, a simple hydrated sulfate of copper with the...and can be contacted at the addresses above. 48 copper deposits found in arid regions. Common accessory...containing copper sulfides at depth. It occurs sparingly at the old Loudville mines, Hampshire County, Massachusetts
Book
volume is dedicated is four-fold: (1) To locate by mine, deposit, or community those mineralized areas of...Co. Hematite CALERA, Shelby Co. Wavkllite CLAY COUNTY, Sec. 24. T. 19 S R., 7 E. STATUARY, Coosa Co...Co., (W. border of* Marble Crystalline TALLADEGA COUNTY Marble, (crystalline) VALLEY HEAD, DeKalb Co. Hematite...Hematite VILLAGE SPRINGS, Blount Co. Hematite WOODS COPPER MINE, Cloaburne Co. Sphalerite ARIZONA COVEI.I.ITE...Feldspar HISSOP, Coosa Co., (near) Beryl JACKSON COUNTY Hematite KENNEDYS, Clay Co., (near) Magnetite MILLERVILLE
Journal (article/letter/editorial)
Porcelaneous Datolite in MichiganÕs Lake Superior Copper District Figure 1. A rare and beautiful yellow...nodule, 0.9 x 1.1 inches, recovered from the Hancock mine dump by John Perona in 1972. John Perona specimen...A. Jaszczak photo. rom the bowels of a Keweenaw copper mine to the icy depths of Lake Superior, serious...descending a steep 2,000-foot-deep mine shaft in the dead of a Keweenaw winter with only mud and ice for...over heels into the black depths of an abandoned mine. All of this effort was expended on clandestine
Journal (article/letter/editorial)
Avenue, Pontiac, Michigan It was at one of last winter's meetings of the Michigan Mineralogical Society...six-day invasion of Marquette, Baraga, Houghton and Keweenaw Counties. The response almost bowled us over so...six days which we had scheduled for Ishpeming, Michigan. Bob Markert and his associates came through in...Upper Peninsula Development Bureau of Michigan, Marquette, Michigan, and were well supplied with information...arrangements with the Michigan College of Mining and Technology at Houghton, Michigan, for a joint field
Journal (issue)
scepter with pyrite, 7 cm, from Spruce Ridge, King County, Washington; Rick Dillhoff collection; Jeff Scovil...Acanthite with silver, 2.6 cm, from the Uchucchacua mine, Peru; Allan Young collection and photo. Amethyst...beautiful quartz specimens from Denny Mountain and King County, Washington, and the zeolites from the coastal...Alaska, ca. 1906. She organized her own company to mine the garnets, and may have distributed thousands...that men would be hired as laborers to work the mine and help develop it, but that no men would be involved
Book
variety, etc. T Tsumeb (vol. 8, no. 3) M y Michigan Copper Country (vol. 23, no. 2) Co. Company G ...five book-format issues (8/#3, Tsumeb; 23/#2, Michigan Copper Country; 23/#4, Yukon Phosphates; 24/#2, Greenland;...I 1991 337--424 273-336 [ 1-128 129-208 [ COPPER] [ 177-256 185-280 169-248 [ 425-528 337--400...the FM-TGMS-MSA Symposium on Azurite and other copper carbonates (chairman: K. Wenrich) 22:65-69 [Abstracts...Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON, STIG G. Hrucopper and cobalt
Catalog/List
section. The largest crystal is 1.5cm high Telirio Mine, Linopolis Minas Gerais Brazil with previous dealers...over 4x4 surface. It's about 1mm thick Cassagna Mine, Ne ,Graveglia Valley, Liguria Italy, I collected...the reverse side. overall size 11x 8cm Star of the Congo mine, Lubumbashi, Katanga DR Congo £80 13 VANADINITE...size piece 1.5 xl .5cm Cock's orebody, San Antonio Mine, Chihuahua Mexico £12 3 15 PYRITE intergrown sharp...fairly rich red brown platy on 1 xl.5cm Varenche Mine, Aosta Italy £12 19 MUSCOVITE variety ALURGITE good
Catalog/List
directly from the miners at the Elmwood Mine in Tennessee, when the mine was actively producing twenty years... 52002 SZENICSITE with POWELLITE Jardinera No. 1 Mine, Inca de Oro, Chañaral Province, Atacama Region...see? This rare Copper Molybdenum mineral came from one pocket in the Jardinera No. 1 Mine. That find was...mining district has been the source of fine Cobalt, Copper, and Silver minerals for many years now. Talmessite...000-$3,000 52006 MIMETITE Var. CAMPYLITE Dry Gill Mine, Caldbeck Fells, North and Western Region (Cumberland)
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 20, 2024 03:26:46
Go to top of page