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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Boston-Acton mine, Acton, York County, Maine, USAi
Regional Level Types
Boston-Acton mineMine
ActonTown
York CountyCounty
MaineState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
43° 28' 41'' North , 70° 54' 26'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Milton Mills299 (2017)5.2km
Acton2,230 (2017)6.2km
Shapleigh2,418 (2017)8.4km
Springvale3,292 (2017)9.3km
Union204 (2017)9.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Southeastern New Hampshire Mineral ClubDover, New Hampshire31km
Mindat Locality ID:
6034
Long-form identifier:
mindat:1:2:6034:2
GUID (UUID V4):
0


Hydrothermal vein sulfide deposit. Located on the east side of the Little River.

The Boston-Acton Mine was one of the largest mines on the vein system leading from North Lebanon north along the Little River and even north of the marsh where the river originates. Fifteen named mines or claims are known, but most properties were never opened, and the dumps are overgrown and small. Some minerals, such as gold, are reported from assays from 1880 and are probably fallacious. Almost all of the mining occurred in 1880, but the Acton Consolidated Mining Company, formed by merging the Boston Acton, Acton, Portland Acton, and the Forest City Mining Companies, continued mining only the Acton and Boston Acton mines, but several attempts were made to revitalize the district in 1881 and 1882 (King, 2000). A map was made showing the approximate locations of the mines (King, 2000, p. 202).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

Acanthite ?
Formula: Ag2S
Andalusite
Formula: Al2(SiO4)O
Anglesite
Formula: PbSO4
Arsenopyrite
Formula: FeAsS
Bornite
Formula: Cu5FeS4
Chalcopyrite
Formula: CuFeS2
Galena
Formula: PbS
Goethite
Formula: Fe3+O(OH)
Native Gold ?
Formula: Au
Native Silver ?
Formula: Ag
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
Sphalerite
Formula: ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold ?1.AA.05Au
Native Silver ?1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Acanthite ?2.BA.35Ag2S
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Pyrrhotite2.CC.10Fe1-xS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Quartz4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Group 9 - Silicates
Andalusite9.AF.10Al2(SiO4)O

List of minerals for each chemical element

HHydrogen
H GoethiteFe3+O(OH)
OOxygen
O AndalusiteAl2(SiO4)O
O AnglesitePbSO4
O GoethiteFe3+O(OH)
O QuartzSiO2
AlAluminium
Al AndalusiteAl2(SiO4)O
SiSilicon
Si AndalusiteAl2(SiO4)O
Si QuartzSiO2
SSulfur
S AcanthiteAg2S
S AnglesitePbSO4
S ArsenopyriteFeAsS
S BorniteCu5FeS4
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S PyrrhotiteFe1-xS
S SphaleriteZnS
FeIron
Fe ArsenopyriteFeAsS
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe GoethiteFe3+O(OH)
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
CuCopper
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
AgSilver
Ag AcanthiteAg2S
Ag Native SilverAg
AuGold
Au Native GoldAu
PbLead
Pb AnglesitePbSO4
Pb GalenaPbS

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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