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Aroostook Co., Maine, USA
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A large county with extensive forest cover. Bedrocks are low grade metasediments with some intrusive rocks. Area is noted for numerous manganese prospects. Manganese ores vary from manganoan magnetite through braunite and rare species.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Actinolite
Aegirine
Albite
var: Andesine
Almandine
Analcime
Ankerite
Antigorite
'Apatite'
'var: Collophane'
Arsenopyrite
Augite
Baryte
Bementite
'Biotite'
Braunite
Calcite
Carnotite
Chalcocite
Chalcopyrite
Chamosite
Chamosite
var: Daphnite

'Chlorite Group'
Chromite
Chrysotile
Clinochlore
var: Pennine
Clinochrysotile
Clinozoisite
Covellite
Diopside
'Diopside-Hedenbergite Series'
Dolomite
Enargite
Epidote
'Feldspar Group'
Fluorapatite
Forsterite
Ganophyllite
Goethite
Gold
Grossular
Gypsum
Hausmannite
Hematite
var: Specularite
'Iddingsite'
Ilmenite
Kaolinite
'Leucoxene'
'Limonite'
Magnesite
Magnetite
Metastibnite
Microcline
Muscovite
var: Sericite
Neotocite
'Olivine'
Orthoclase
Pigeonite
Prehnite
Pumpellyite-(Fe2+)
Pumpellyite-(Mg)
Pyrite
Pyrophanite
Pyrrhotite
Quartz
var: Carnelian
var: Chalcedony
Rhodochrosite
Rhodonite
Sanidine
'Scapolite'
Schafarzikite
'Serpentine Group'
Spessartine
Sphalerite
Stibnite
Stilpnomelane
Sulphur
Talc
Titanite
Valentinite


86 entries listed. 64 valid minerals. 3 erroneous literature entries.

Localities in this Region

USA
USA

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Miller, Ralph L., 1947, Manganese Deposits of Aroostook County, Maine, Bulletin 4, Maine Geological Survey, Augusta, Maine, pp. 77 + plates.
Pavlides, Louis and Milton, Charles, 1962, Geology and Manganese Deposits of the Maple and Hovey Mountains Area, Aroostook County, Maine, U. S. Geological Survey Professional Paper 362, pp. 116 + plates.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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