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| the Source of Native Copper Mineral Specimens Downloaded by [Library Services City University London]... with Copper Isotope Values A Case Study Solving the Misidentification of CM21474: Michigan vs. Namibia...collecting native copper specimens for analysis from the rock piles of the Champion No. 3 mine at Painsdale...Painsdale, Houghton County, Michigan. Note the Champion No. 4 mine shaft house in the distance. Marc Wilson photo...Juniata College. Downloaded by [Library Services City University London] at 05:40 05 July 2016 Figure |
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| Through the Scope Copper Inclusions in Quartz Microcrystals From Michiganās Keweenaw Peninsula TOM...57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net T he Lake Superior copper district...of mines in the district, especially the Quincy mine. Crystals ranged in size from micro to large-cabinet...the heyday of copper mining (1860ā1940). This article focuses on the lesser-known copper inclusions in...been collected throughout the district. The native copper deposits occur in the Portage Lake Volcanics that |
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| Michiganās Copper Country News from the Keweenaw Recent Mineral Finds in Michiganās Copper Country Downloaded...A l t h o u g h commercial copper mining has come to an end in the Copper Country, specimens reminiscent...groups of copper and silver crystals, colorful porcelaneous nodules of datolite, and copper inclusions...courtesy Michigan Technological University Archives and Copper Country Historical Collections, Michigan Technological...21:35 21 November 2014 The demise of the native copper mining industry in the latter part of the twentieth |
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| at the Caledonia Mine, Ontonagon County, Michigan -- Downloaded by [University of Michigan] at 08:51...Figure 1. The 1996 mining crew at the 4th level, Caledonia adit. Left to right, Clyde Gruver, Jim Brooks...Photo by Ted Bornhorst, October 1996. T he Caledonia mine, owned by Red Metal Minerals, is located at...of the famous Michigan native copper district and is the last operating mine on the copper range. It is...specimen-mining activity in 1996. History The Caledonia Mining Company started mining operations in 1863 |
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| 5500 University Parkway, San Bernardino, CA 92407, USA College of Natural Sciences, California State University...5500 University Parkway, San Bernardino, CA 92407, USA a r t i c l e i n f o Article history: Received...Bƶttcher Keywords: Gerhardtite Nitrogen Isotope Copper Buttgenbachite a b s t r a c t Cupric nitrate...include: 1) termite, 2) bat, 3) atmospheric and 4) coal mine ļ¬res and natural gas. It is clear that in three...temperatures in coal bed ļ¬res is 1.9ā° (Pennsylvania, USA) to 1.7ā° (Germany). Ā© 2014 Elsevier B.V. All rights |
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| Porcelaneous Datolite in MichiganĆs 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...Jaszczak photo. rom the bowels of a Keweenaw copper mine to the icy depths of Lake Superior, serious datolite...combination. Imagine descending a steep 2,000-foot-deep mine shaft in the dead of a Keweenaw winter with only...over heels into the black depths of an abandoned mine. All of this effort was expended on clandestine |
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| 1632 Camp Bird Mine Road P.O. Box 586 Ouray, Colorado 81427 I first went to the mine in the spring of...to red porcelanous datolite along with naĀ tive copper and, more rarely, native silver could be found...crystallized copper, adularia, and epidote. In 1985 mineral rights for the Caledonia mine were bought...rehabilitated the No. 4 adit of the mine and are presently operating the mine for the reĀ covery of mineral...collecting trips. Over the past five years the Caledonia mine has produced many fine hand specimens and an |
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| iners with a large mass of native copper in the Quincy mine ca. 1918. (Michigan Technological University...of Donald Pearce (1941-1989) The āCopper Kingā 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. |
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| MICHIGAN COPPER COUNTRY Figure 1: Shaft house of the Ahmeek mine, Keweenaw County. 1962 photo by Terry...and probably never will be anything like the Michigan Copper Country. For the mineral-minded, it is the...for mining its copper as the native metal. For the collector, its scores of old mine dumps never cease...evergreen forests, and a New England climate. The Copper Country lies 500 miles due north of Chicago in...author believes these were Chinese who took back the copper to make their famous bronze vessels. From evidence |
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| Peninsula TOM ROSEMEYER Figure 1. The best silver/copper specimen recovered to date from the vein by Doug...composed of silver and lesser amounts of copper. The silver/copper was encased in weathered prehnite that...Jaszczak photo (October 2017). 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net Twenty-sixth...articles on the mines and minerals of Michiganās Copper Country O n 16 August 2017 an impor- tant discovery...located in Keweenaw County, Michigan, was made by Doug Miller of Calumet, Michigan. Miller, a thirty-year |
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| February 2015 Figure 2. A generalized map of the Michigan copper district showing the location of new finds...Besse. arborescent copper crystal groups cached at the Central mine town site, (2) copper crystals recovered...Gull Rock fissure vein, (3) hundreds of copper from the Indiana mine, and (4) more than two hundredV aecilS...analcime/calcitecrystal groups from the Rhode Island mine. This article describes these and other finds made...the White Pine mine at the southern end of the district. Keweenaw Point, Keweenaw County The waters off |
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| Keweenaw Counties, Michigan TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter...articles on the mines and minerals of Michiganās Copper Country his article details the discovery and...counties, Michigan. Every summer in the Copper Country, mine dumps from a bygone era of copper mining are...are being crushed and hauled off the mine sites. The crushed rock is mainly used for road repair and...the Copper Country there is a cadre of people using metal detectors to locate and recover copper that |
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| University Auburn, Alabama 36849-5305 COPPER RAY MINE, PINAL COUNTY, ARIZONA Downloaded by [University...Whether uncombined or alloyed with other metals, copper has played a major role in the development of our...and widely used nonferrous metals. Consequently, copper deposits have been sought by prospectors and geologists...Tucson Gem and Mineral Show, an h i zona native copper specimen has been chosen for this issueās Connoisseurās...(fig. I). For an in-depth description of Arizona copper and its most famous localities, the reader is referred |
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| TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net All mineral photography...History and Mineralogy of the St. Louis Mine Houghton County, Michigan Twentieth in a series of articles...and minerals of Michiganās Copper Country Figure 2. An exceptional copper-included agate, measuring 0...central circular red banding contains micro-sized copper inclusions; the rim of the agate contains more...at the St. Louis mine, located about 1.3 miles east of the village of Laurium, Michigan. This little-known |
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| prepared by William Besse. 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net An UNUSUAL...the mines and minerals of Michiganās Copper Country F loat copper and silver are defined as chunks of...formed to where they would ultimately be found. In Michigan this took place during multiple periods of continental...experienced over the past 2 million years. The copper and silver were transported by glacial ice, and...ice sheet, the copper and silver were dropped in place. Spectacular masses of float copper have been found |
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| Michiganās Copper Country Ellis W. Courter Contribution to Michigan Geology 92 01 Table of Contents......................... 6 Europeans Come to the Copper Country ............................................................. 12 The Legend of the Ontonagon Copper Boulder .................................................................. 18 The Copper Rush .................................................................................. 80 West of the Ontonagon.............................................. |
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| Mineralogy of Michigan by E. W. Heinrich updated and revised ā¢ by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 Ā© 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 |
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| A Treasure TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net Unearthed...articles on the mines and minerals of Michiganās Copper Country Figure 1. Google Earth photo showing the...August 2013 by Jay and Chad Just near Calumet, Michigan. The boulder was ripped loose from the conglomerate...Tom Rosemeyer, a native of Upper Michigan, is a graduate of Michigan Technological University in Houghton...Houghton. He now spends a good part of the year in the Copper Country collecting and writing articles about the |
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| Cover Photographs JanuarylFebruary: Copper, Ray, Pinal County, Arizona. Les Presmyk specimen, Jeff Scovil...with quartz and albite, Tourmaline Queen mine, San Diego County, California. Houston Museum of Natural...claims, Farncomb Hill, Breckenridge district, Summit County, Colorado. Denver Museum of Natural History specimen...Azurite on malachite ring, Flambeau mine, Ladysmith, Rusk County, Wisconsin. Dan Behnke specimen and...Sweetwater mine, Reynolds County, Missouri. Marvin Rausch specimen, Jeff Scovil photo. Adularia, Michigan, I10 |
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| 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...NoneĀ theless, with the aid of a good state or county map, plus local inquiries, the list could be helpful |
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| News from the Tom Rosemeyer 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net Keweenaw...Figure 1. A delicate group of copper crystals collected at the Ojibway No. 1 mine in summer 2009 by Steve Whelan...minerals of Michiganās Copper Country Figure 2. Generalized map of the Michigan copper district showing the...Michiganās Copper Country T he Michigan Copper Country, also known as the Lake Superior native copper district...Superior at the western end of Upper Michigan. The now-dormant copper mining industry, which flourished |
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| 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...as the Cheapside quarry at Deerfield, Franklin County, where it occurred with prehnite. Crystals from...century at the Lane quarries at Westfield, Hampden County, Massachusetts; fine specimens were also found...green datolite crystals from the Second Sovietski mine, Dalnegorsk, Primorskiy Kray, Russia. The 18.5 ā«» |
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| (August 2013). TOM ROSEMEYER 57647 Caledonia Street Calumet, Michigan 49913 datolite@charter.net Up Twenty-first...articles on the mines and minerals of Michiganās Copper Country from the Depths Underwater Recovery...KEWEENAW COUNTY, MICHIGAN Tom Rosemeyer is a native of Upper Michigan and a graduate of Michigan Technological...University. He now spends a good part of the year in the Copper Country researching and writing articles on the...shoreline of Lake Superior at Esery Park, Keweenaw County. Larry Maltby photo (July 2013). Figure 3. Map |
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| 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.... 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...fresh water seas, with waters of Lake Superior, Michigan and Huron virtually surrounding it. Illinois and |
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| Lake Superior copper deposits, home to the worldās largest occurrence of native copper. Indeed, many...sport flecks of native copper, and specimens exist of datolite intergrown with copper crystals, but thatās...thatās getting ahead of the story. Michiganās Copper Country datolite has been collected, prized, fashioned...Dyl II, Director A. E. Seumnii Mineral Museum Michigan Technological University 170 ROCKS 81MINERALS...81MINERALS ā .1-. . TOM ROSEMEYER 1632 Camp Bird Mine Road P.O. Box 586 Ouray, Colorado 81427 rosemeyer@ocinet |
Caledonia Mine, Mass City, Ontonagon County, Michigan, USA