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Mineral Deposits Of Maine

Maine Geological Survey: Metallic Mineral Deposits

2013-1-24  The Metallic Mineral Deposits of Maine map (PDF 0.7MB) shows locations of known metallic mineral occurrences on a generalized geologic map of Maine. The information is taken from the Maine Mineral Resources database of

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Maine Geological Survey: Maine's Mineral Resources

Maine Mineral Resources Data System This database was produced by the Maine Geological Survey in 2009. It was derived from the U.S. Geological Survey's Mineral Resources Data System (MRDS). MRDS is a worldwide database of mineral site records with related geologic, commodity, and deposit information. The USGS data were combined with records

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Significant Known Metallic Mineral Deposits in Maine

2021-3-18  Significant Known Metallic Mineral Deposits in Maine including approximate tonnage and grade1 Northern Maine belt (in alphabetical order) *Alder Pond 3.4 MT massive sulfide, of which 0.8 MT grades 2-3% copper, 9-17% zinc, 0.5-1.0% lead, and 3-6 oz/ton silver. Advanced exploration permit issued by DEP to

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Metallic Mineral Deposits in Maine NRCM

2012-9-5  Very large deposits of volcanic and sedimentary rocks (shown in yellow) are spread throughout the state. Volcanic and sedimentary deposits often hold massive sulfide deposits, which are what open pit mining companies will be looking for in Maine. These metallic mineral deposits are located near some of Maine’s most precious natural areas,

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Mining and Quarrying in Maine: Explore Maine Geology

2021-11-16  Mining and Quarrying in Maine Virtual Tour. Our virtual tour is a series of photos which portray some of the history and types of Maine mining and quarrying.; Frequently Asked Questions Geologic Information. Metallic Mineral Deposits of Maine (map) Known occurrences of metallic minerals shown on a generalized geologic map of Maine.

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Interactive map of mineral resources in Maine American

2022-2-7  The Maine Geological Survey's interactive map provides a range of mineral resource information for the state of Maine. The map allows users to explore Maine's significant mineral commodities, mineral deposits, selected

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Maine Geological Survey: Maine's State Mineral

2015-1-26  Tourmaline: Maine's State Mineral. Tourmaline is one of the most attractive minerals occurring in Maine. It ranges in color from black or white to vibrant shades of red, green, and blue. The color of the best Maine specimens rivals that of tourmaline from world-famous localities in California, Brazil, Pakistan, and Afghanistan.

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Rare Gems and Minerals in Maine Mining Locations

Maine is probably the best state in New England to mine for gems and minerals. The State Gem is tourmaline, which is found here in a variety of colors. Some exceptionally large specimens have been mined here. Other popular minerals to dig for

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Maine Geological Survey: Mining and Quarrying

Tourmaline is the official State Mineral of Maine, and the most valuable and highly sought-after gem material that can be found here. Gem tourmaline has been mined in Maine since the 1820's, and the oldest location (Mt. Mica in Paris Hill) is still producing today. Tourmaline is actually a group of minerals having various colors and compositions.

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Nickel Deposits of USGS

2012-7-24  Maine-----43 JGnox CountY which the hydrosilicate garnierite is the principal nickel mineral. These deposits contain more than 1.5 percent nickel. Large deposits of this type occur in New Caledonia and medium to large deposits occur in Indonesia, Venezuela, Brazil, Oregon (United States), and else­

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Metallic Mineral Deposits in Maine NRCM

2012-9-5  Very large deposits of volcanic and sedimentary rocks (shown in yellow) are spread throughout the state. Volcanic and sedimentary deposits often hold massive sulfide deposits, which are what open pit mining companies will be looking for in Maine. These metallic mineral deposits are located near some of Maine’s most precious natural areas,

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Maine Mineral Resources Significant Metal Deposits

Maine Mineral Resources Data was produced by the Maine Geological Survey in 2009. It was derived from the U.S. Geological Survey's Mineral Resources Data System (MRDS). MRDS is a worldwide database of mineral site records with related geologic, commodity, and deposit information. The USGS data were combined with records from the Maine Geological Survey's

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Maine Geological Survey: A Collector's Guide Chapter 2

2005-10-6  Chapter 2. Geologic Settings of Maine Minerals. Most of the good mineral localities in Maine occur in one of several common geologic environments, such as granite pegmatites or metamorphic rocks. Each of these settings is briefly described here, so that you will have a better understanding of how the mineral deposits originated.

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Maine Geological Survey: Mining and Quarrying

Tourmaline is the official State Mineral of Maine, and the most valuable and highly sought-after gem material that can be found here. Gem tourmaline has been mined in Maine since the 1820's, and the oldest location (Mt. Mica in Paris Hill) is still producing today. Tourmaline is actually a group of minerals having various colors and compositions.

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Rare Gems and Minerals in Maine Mining Locations

Maine is probably the best state in New England to mine for gems and minerals. The State Gem is tourmaline, which is found here in a variety of colors. Some exceptionally large specimens have been mined here. Other popular minerals to dig for

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Maine Geological Survey: Gold in Maine

2012-9-24  Gold in Maine. Gold occurs in several geologic environments in Maine: in bedrock, in sediments that were eroded from bedrock by glaciers, and in stream deposits derived from either of these sources. Veins of gold in bedrock are

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"Metallic Mineral Mining in Maine" by Kaitlyn Bernard

2013-6-6  In 2012 the Maine State Legislature passed a bill directing the Maine Department of Environmental Protection (DEP) to rewrite the regulations governing metallic mineral mining in Maine. The bill was introduced after pressure from Maine’s largest private land owner and timber company, J.D. Irving, Limited. The company has a lucrative mineral deposit on one of their

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Mining In Maine The Diggings™

Maine has 788 identified mines listed in The Diggings™. The most commonly listed primary commodities in Maine mines are Silver,Copper,and Lead .At the time these mines were surveyed, 174 mines in Maine were observed to have ore

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Maine Pegmatite Mines and Prospects and Associated

2020-10-13  a preliminary guide-book which may aid mineral collectors and commercial mining organizations in appraising Maine's wealth in feldspar deposits and their associated industrial and exotic minerals. The pegmatites of Maine are essentially coarse-grained concentrations of feldspars and quartz

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The Plumbago North pegmatite, Maine, USA: a new

2020-2-6  A new spodumene-rich pegmatite was recently discovered on the north side of Plumbago Mountain, Oxford County, Western Maine. The site is about 1.5 km northwest of the famous Dunton gem tourmaline pegmatite. It is an albite-quartz-spodumene pegmatite containing gigantic crystals of spodumene and montebrasite. Some spodumene crystals are more than

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Maine Mineral Resources Significant Metal Deposits

Maine Mineral Resources Data was produced by the Maine Geological Survey in 2009. It was derived from the U.S. Geological Survey's Mineral Resources Data System (MRDS). MRDS is a worldwide database of mineral site records with related geologic, commodity, and deposit information. The USGS data were combined with records from the Maine Geological Survey's

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Mineral Hill Deposit Near Parsonsfield, Maine The

Parsonsfield, Maine. 43.6749°N 71.0077°W. Overview Lead. Location 1 Aliquots. Physiography 1 Records. Mine Overview. The Mineral Hill Deposit is near Parsonsfield, Maine. The Mineral Hill Deposit was closed at the time of data entry with no known plans to re-open. Production size when active was considered to be small.

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Lead-Zinc-Silver Deposits Related to the White Mountain

2011-6-27  LEAD-ZINC-SILVER DEPOSITS, NEW HAMPSHIRE AND MAINE D5 Quartz, carbonate minerals, and pyrite are the predominant gangue minerals in all deposits of this group. Quartz is commonly milky and coarsely crystalline. At Shelburne, coarse comb-structured quartz masses are crossed by concentric spherical color bands with a pattern

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Maine Pegmatite Mines and Prospects and Associated

2020-10-13  a preliminary guide-book which may aid mineral collectors and commercial mining organizations in appraising Maine's wealth in feldspar deposits and their associated industrial and exotic minerals. The pegmatites of Maine are essentially coarse-grained concentrations of feldspars and quartz

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"Metallic Mineral Mining in Maine" by Kaitlyn Bernard

2013-6-6  In 2012 the Maine State Legislature passed a bill directing the Maine Department of Environmental Protection (DEP) to rewrite the regulations governing metallic mineral mining in Maine. The bill was introduced after pressure from Maine’s largest private land owner and timber company, J.D. Irving, Limited. The company has a lucrative mineral deposit on one of their

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QUARTZ AND FELDSPAR. USGS

2011-12-6  nate amounts of other minerals. The pegmatites of Maine were studied by the writer during part of the summer of 1906, the work being done in cooperation between the State Survey Commission and the United States Geological Survey. GEOGRAPHIC DISTRIBUTION. These deposits are confined largely to Sagadahoc,, Cumberland,

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Staggering $1.5 billion lithium deposit discovered near

2021-10-24  Smaller deposits have been known in Maine for decades, but this recent discovery, just north of Plumbago Mountain in Newry, is the first to

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The Plumbago North pegmatite, Maine, USA: a new

2020-2-6  A new spodumene-rich pegmatite was recently discovered on the north side of Plumbago Mountain, Oxford County, Western Maine. The site is about 1.5 km northwest of the famous Dunton gem tourmaline pegmatite. It is an albite-quartz-spodumene pegmatite containing gigantic crystals of spodumene and montebrasite. Some spodumene crystals are more than

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Mount Mica, Maine Tourmaline, Gemstones, Jewelry

Mount Mica Today. In 2003, Mount Mica was purchased by Coromoto Minerals LLC. In August, mining began with the removal of overburden in the western portion of the mine. Immediately, pockets began to show and some beautiful

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Major mineral deposits of the world USGS

Major mineral deposits Major mineral deposits of the world: Regional locations and general geologic setting of known deposits of major nonfuel mineral commodities. Deposits by type Deposits by commodity Deposit or location names: Geographic reference: OpenStreetMap

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