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Chlorastrolite from
Northwestern Mine, Central, Houghton Township, Keweenaw County, Michigan, USA


Locality type:Mine
Classification
Species:Pumpellyite-(Mg) var: Chlorastrolite
Formula:Ca2MgAl2(Si2O7)(SiO4)(OH)2 · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chlorastrolite data
Locality Data:Click here to view Northwestern Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:416973
Long-form Identifier:1:3:416973:4
GUID (UUID V4):fe408083-2a9f-4acb-852a-7168d00b755c
Nearest other occurrences of Chlorastrolite
0.5km (0.3 miles) Central Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
1.5km (0.9 miles) Central Exploration Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
2.4km (1.5 miles) Copper Falls, Eagle Harbor, Keweenaw County, Michigan, USA
4.6km (2.9 miles) Waterbury Mine, Eagle Harbor, Keweenaw County, Michigan, USA
6.0km (3.7 miles) St. Clair Mine, Phoenix, Houghton Township, Keweenaw County, Michigan, USA
6.9km (4.3 miles) Phoenix Mine, Phoenix, Houghton Township, Keweenaw County, Michigan, USA
7.2km (4.5 miles) Delaware Mine (Delaware Conglomerate Mine), Delaware, Grant Township, Keweenaw County, Michigan, USA
10.1km (6.3 miles) Cliff Mine, Allouez Township, Keweenaw County, Michigan, USA
13.9km (8.7 miles) Medora Mine, Mandan, Grant Township, Keweenaw County, Michigan, USA
18.5km (11.5 miles) Iron City Mine (Empire Mine), Mosquito Mining District, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA
References
Reference Search (possible matching items)
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)
(CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...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
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
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
Report (volume)
64-66 Supt.of Docs. No.: 119.3:1309 1. Geology-Michigan-Isle Royale National Park-Guide-books. I. Title...Native copper widespread but not abundant ____ Chlorastrolite Michigan's state gem __________ Prehnite the...found in Indian mounds and habitats throughout central and eastern North America, some of which probably...copper mining by Europeans was established on Keweenaw Peninsula and had been attempted on Isle Royale...Foster and Whitney is that Isle Royale and the Keweenaw Peninsula may be regarded as geologic counterparts
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.... 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
Journal (article/letter/editorial)
THE CLIFF MINE, discovered in 1844, is located on the Keweenaw Peninsula of Upper Michigan in the heart...first mine on the "Keweenaw" to pay dividends to stockholders. Throughout its history, the mine also produced...over. N ative copper was first mined on the Keweenaw Peninsula several thousand years ago by Native...period but ended unsuccessfully. Dr. Douglass Houghton first visited the copper region in 1830 and published...controlled three mineral tracts on the northern part of Keweenaw Peninsula. After examining the copper prospect
Journal (article/letter/editorial)
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. The specimen is...Copper Country Figure 2. Generalized map of the Michigan copper district showing the location of the new...Mineral Finds in Michigan’s Copper Country T he Michigan Copper Country, also known as the Lake Superior...scenic Keweenaw Peninsula, which juts out into Lake Superior at the western end of Upper Michigan. The
Journal (article/letter/editorial)
Photographs January/February: Crocoite, Adelaide mine, Dundas, Tasmania, Australia. Francis Benjamin specimen...Scovil photo. March/April: Galaxy opal, Opalville mine, lease 135, Jundah, Queensland, Australia. Owner...July/August: Silver, Wolverine mine, Kearsarge lode, Keweenaw County, Michigan. William Severance specimen...(Hallelujah Junction), Petersen Mountain, Washoe County, Nevada. Paul Geffner specimen, Jeff Scovil photo...November/December: Millerite, Sterling mine, Antwerp, Jefferson County, New York. National Museum of Natural
Journal (article/letter/editorial)
Who's Who in Mineral Names Minerals Named ) ] for Michigan L / Mineralogists and Geologists In this, the...veys, we pay tribute to those individuals from Michigan who have been honored by hav­ ing minerals named...Geology and Mineralogy University of Michigan Ann Arbor, Michigan 48109 T H E Y E A R 1987 I S NOT O N...S Q U I C E N ­ T E N N I A L of the state of Michigan but also of Michigan's geological and mineralogical...with Michigan geological institutions have been many famous individuals: e.g., Douglass Houghton, Ra­
Book (volume)
collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift of the Late Pleistocene...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
Book (volume)
collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift of the Late Pleistocene...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
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...Meeting,Houghton, Houghton,Ml, 40, part part2, 2, 185 185p. p. MI,v.v. 40, 1 PREFACE PREFACE In 1983 1983..."Field Guide to the Geology Geology of the the Keweenaw Keweenaw Annual Institute Institute on on Lake Lake
Journal (issue)
MICHIGAN COPPER! The Mineralogical Record JANUARY-FEBRUARY 2023 ? VOLUME 54 ? NUMBER 1 ? $40 ... KRISTALLE Est.1971 Laguna Beach, California, USA • Tel: +1 949 494 5155 • Email: info@kristalle.com.......................3 by W. E. Wilson The Keweenaw County Fissure Mines....................................13 by C. J. Stefano The Cliff Mine, Keweenaw County, Michigan......................................C. J. Stefano & P. Persson The Central Mine, Keweenaw County, Michigan...............................
Book (edition)
feldspar quarries in pegmatite deposits, mines and mine dumps, and from "float" deposits, minerals loose...thunder eggs. These formations, found in the northwestern United often blue, States, are filled with...should always ask permission it may be un- or a mine dvmip. Cleanliness around a camp site and removal...Milwau- have come from central Indiana, near Cincinnati, and Dowagiac, Michigan. Few have been reported...Lincoln Co. Todd's Branch, Mecklenberg Co. Portis mine, Franklin Co. Muddy Creek headwaters, McDowell
Book
70 ie 72 ea: * Michigan 2, 55 55 56 7 7 Stone-Petoskey Stone Gem-Chlorastrolite Soil-Kalkaska Series...made the “Magic City” of Birmingham, Jefferson County “The Pittsburgh of the South” during the turn of...feet thick, occurs near Sylacauga, in Talladega County, being fine-grained and mostly white, ofexceptional...white Sylacauga marble from Sylacauga, Talladega County, is considered among the finest white marble in...the Lincoln Memorial. Marble from Chewacla, Lee County, near Auburn, Alabama, is a coarse grained dolomite
Journal (issue)
copper in the Quincy mine ca. 1918. (Michigan Technological University Archives, Houghton) D e d ic ated...Donald Pearce (1941-1989) The “Copper King” The MICHIGAN COPPER COUNTRY L. W i l s o n New Mexico Bureau...t a n l e y J. D y l II Seaman Mineral Museum Michigan Technological University % 1992 T h e M in e...crystal group, 13.6 cm, from an unknown mine in the Michigan Copper Country. Richard A. Kosnar collection;...wrote the classic work on the copper deposits of Michigan in 1929. Photo by Wendell E. Wilson. TENT .
Book (volume)
vel The Encyclopedia of MICHIGAN The Encyclopedia of MICHIGAN FOURTH ae EDITION ease VOLUME... INTRODUCTION There is no such thing as a “‘typical’? Michigan citizen; although some other states may have...easily conform to any one type. One reason is that Michigan has such a great diversity in natural characteristics:...pines northward; the battered dunes of the Lake Michigan shores; and the regimented rows of hand-reared...of inland lakes, the Straits of Mackinac divide Michigan into two units, a feature unknown by any other
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...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...Person-other—Other persons such as miners, field assistants, mine managers, etc. Place —Used when a mineral is named
Journal (article/letter/editorial)
No. 17, Museun1 of Anthropology, University of Michigan, Ann Arbor. • HRUSKA, ROBERT 1967 "The Riverside... . . . . . . . . . . . . . . . . . . 23 The Old Mine . . . . . . . . . . . . . . . . . . . . . . . ....Brownell, Professor of Contemporary Thought at Northwestern-- University, Evanston, Illinois; and to Dr... Dr. W. B. Hinsdale, University of Michigan, Ann Arbor, Michigan. Mr. Frank M. Warren, Minneapolis, Minnesota...Emmit Scott, La Porte, Indiana. Mr. J. T. Reeder, Houghton, 1fichigan. 11r. Arthur C. Neville, Director,
Journal (issue)
All rights 1 ATTENTION, THE AND ROCKHOUNDS MICHIGAN MINERAL GEM gh SOCIETY FIRST MIDWEST Y ...Jewelry PLACE St. John's High School—Jackson, Michigan May 14th—10 AM to 10 PM May 15th—10 AM to 6 PM...Rd., Jackson, Mich. Watch for announcement of CENTRAL ILLINOIS ROCKHOUNDS ROCKRAMA in Decatur, June issue...Federation and resides in Sa Michigan, where he is a very active t the Tri-County Rocks and Minerals Soci...Claren RS Protessor t Fundamental Sci t A THE CENTRAL NEBRASKA ROCK AND — College. H i scholar of MINERAL
Book (volume)
(25.56 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...operators, Morefield Mine, Amelia, VA; Max & Suzy Berchtold, Royal Rainbow Mine, Laytonville, CA; Ralph...Cantlin, Ellis, [D; Jeannette B. Carillo, Gem Center USA, EI Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill O. Murphy
Journal (article/letter/editorial)
an in a recent letter he writes: "Bastnaand old mine tunnel located west of Tucson. There were also calcite...much of the barite with cal- tain Pass, Calif. The mine is about 3 miles cite and galena." David P. Record...Mart, 4400 Mission Road, road leads to the mine. The mine consists of one shaft. Some bastnasite has...crystals. It is an attractive speciassaying. This mine will be a potential men. source of cerium metal...March-April, 1950, manganese mine near Glen wood, Pike ROCKS AND MINERALS, p. 123. County, Arkansas. Mr. Young
Book (edition)
Collector and the Tourist includes 1 SOUTH DAKOTA • MICHIGAN • ILLINOIS • IOWA WISCONSIN • OHIO • KANSAS •................ MISSOURI .............. 44 NORTHWESTERN MISSOURI Gems ................................MISSOURI Gems .............................. THE CENTRAL PLATEAU....... ,31 Geodes .....................34 NORTH CENTRAL NEBRASKA 35 WESTERN & CENTRAL NEBRASKA 36 EASTERN NEBRASKA 37 CENTRAL MISSOURI Gems... 47 MICHIGAN ............. 63 WESTERN IOWA ............................ -47 THE KEWEENAW PENINSULA
Report (volume)
four regions: the Pacific Coast, Great Lakes, central Kentuckyeastern Tennessee, and the Atlantic Coast-Piedmont...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
 
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