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Prehnite from
Manganese 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 Manganese Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:8835
Long-form Identifier:1:3:8835:0
GUID (UUID V4):33355d9c-a293-4d80-92ef-1609d8e673c8
Nearest other occurrences of Prehnite
1.1km (0.7 miles) Clark Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
1.9km (1.2 miles) Star Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
1.9km (1.2 miles) Cape Mine, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
2.3km (1.5 miles) Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
4.7km (2.9 miles) New York and Michigan Exploration, Grant Township, Keweenaw County, Michigan, USA
5.3km (3.3 miles) Aetna Exploration Copper Mine, Grant Township, Keweenaw County, Michigan, USA
5.8km (3.6 miles) Lac La Belle exploration, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
6.2km (3.9 miles) Vulcan Exploration Copper Mine, Grant Township, Keweenaw County, Michigan, USA
7.3km (4.5 miles) Hard Rock fissure, Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
8.2km (5.1 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
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...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...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available
Journal (article/letter/editorial)
in the various serialized articles on the Michigan Copper Country by Tom Rosemeyer (including the one...some browns and darker reddish shades imparted by copper inclusions. It exhibits a vitreous luster and is...analyses show very minor amounts of aluminum, iron, manganese, and/or magnesium. Pseudomorphs of datolite after... Associated minerals include calcite, quartz, prehnite, danburite, axinite, garnet, and the zeolites...quarry at Deerfield, Franklin County, where it occurred with prehnite. Crystals from this locality were
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 (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.
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
Report (issue)
University University Michigan Townsend Drive Drive 1400Townsend 1400 Houghton, Houghton, Michigan Michigan49931-1...J. the Keweenaw Peninsula, Michigan: Institute on Lake Superior Geology Proceedings, Keweenaw Peninsula...Peninsula, Michigan: Institute on Lake Superior Geology Proceedings, 40th 40thAnnual AnnualMeeting, Meeting..."Field Guide to the Geology Geology of the the Keweenaw Keweenaw Annual Institute Institute on on Lake Lake...Lake Superior Superior Geology Peninsula, Michigan" Michigan" (Bornhorst (Bornhorst and others, 1983) for
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
Journal (article/letter/editorial)
C ollector’s Note THE STATE OF MICHIGAN Downloaded by [Northeastern University] at 12:45 28 February...minerals in the altered [Michigan] copper lodes for the Calumet and Hecla Copper Mining Company, noted a...Find Manganese-rich Pumpellyite From the Manganese Mine, Copper Harbor, Keweenaw County, Michigan 548... See also Palache and Vassar (1925). In 1973, Michigan adopted the compact, massive green variety of...commonly referred to in Michigan as “Isle Figure 1. Map of Michigan’s Keweenaw Peninsula showing the location
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:...mines, as important producersBarite, Manganese, ocher. Manganese deposits have a wide geographic distribution
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;
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)
Calumet, Michigan 49913 tajmahal@gilanet.com History and Mineralogy of the Manganese Mine Keweenaw County...County Michigan Tom Rosemeyer, a native of Upper Michigan, is a graduate of Michigan Technological University...Houghton. He now spends a good part of the year in the Copper Country researching and writing articles about...articles on the mines and minerals of Michigan’s Copper Country Downloaded by [Lakehead University] at...ocated in the rugged Keweenaw Peninsula of Upper Michigan are two small manganese oxide deposits that
Journal (article/letter/editorial)
several new localities, including the Flambeau copper mine near Ladysmith (Rosemeyer 1999, the Vulcan Materials...Racine (Scovil 1994), the pegmatites of Florence County (Koehier 1989) and the Wausau area (Falster 1987)...southwestern portion of the state, primarily in Grant, Iowa, and Lafayette Downloaded by [Korea University]...galena, sphalerite, marcasite, calcite, barite, and copper minerals were found. Mining in this district ceased...in Michigan’s famous Keweenaw Peninsula. Many of the minerals (copper, prehnite, laurnontite, and datolite)
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
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)
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
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
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)
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...chrysocolla, cyanotrichite, and various iron and manganese oxides. Brochantite is known from scattered locations
Report (volume)
colors. Impurities, such as iron, chromium, and copper, also tint the minerals. Care should be taken in...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:...Diamond Basin, Ada County, Idaho; Curry County, Oreg.; and Nelson Hill, near Glacier County, Mont. The Great
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
last. TOTAL WRECK WULFENITE: Total Wreck Mine, Pima County, Arizona; Nice butterscotch to near clear...inch specimens, $25.00 each. CAMPYLITE: Dry Gill Mine, Cumberland, England; A unique and rare species...at $15.00 each. BROOKITE: Magnet Cove, Garland County, Arkansas; Dipyramidal thumbnail crystals mounted...structures. $20.00 each DENDRITIC WIRESIL VER Elure Mine, Cobar, NWS, Australia; Fine crystalline wire silver...priced at $20.00 each CINNABAR AND STIBNITE: Gorlovka Mine, Ukraine; Nice thumbnails mounted in plastic perky
Journal (issue)
page X) In this issue … Mineral of the month: Prehnite .......... p. 4 April program details .......... Bank manager finds diamond.............. p. Prehnite From Southbury, Connecticut Bench Tip: Depth... Mineral of the Month Happy Easter! Prehnite by Sue Marcus Prehnite is our Mineral of the Month for April...it when we return to field collecting. Although prehnite is relatively common, we will learn some little-known...No in-person social events for now! The first prehnite to be described as a mineral came from South Africa
 
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