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Adventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USAi
Regional Level Types
Adventure mineMine
GreenlandCensus-designated Place
Greenland TownshipTownship
Ontonagon CountyCounty
MichiganState
USACountry

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Latitude & Longitude (WGS84):
46° 46' 27'' North , 89° 4' 54'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Ontonagon1,324 (2017)20.7km
South Range746 (2017)46.8km
Mindat Locality ID:
8384
Long-form identifier:
mindat:1:2:8384:6
GUID (UUID V4):
0
Other/historical names associated with this locality:
Adventure Consolidated Mine


Introduction
An underground copper mine consisting of three shafts and at least one adit. It is located just south of the town of Greenland, about 15 miles SE of Ontonagon.

History
The Adventure Mining Co. organized in 1850. In 1858 it purchased the Merchants Co. property. In 1870 the company was sold and reorganized under the same name. In 1898, the company was sold again and reorganized under the Adventure Consolidated Copper Co. This consolidation included the Adventure, Hilton, and Knowlton mines. The company suspended all operation in October of 1917.

Production
The mine produced approx. 11 million lbs. of refined copper.

For the Collector
The mine is currently open as a tourist attraction, and tours are given underground during the summer months. Minerals that can be found on the surface piles include copper, silver, and quartz.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


13 valid minerals.

Detailed Mineral List:

Calcite
Formula: CaCO3
'Chlorite Group'
Cuprite
Formula: Cu2O
Datolite
Formula: CaB(SiO4)(OH)
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
'K Feldspar'
'K Feldspar var. Adularia'
Formula: KAlSi3O8
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Microcline
Formula: K(AlSi3O8)
Native Copper
Formula: Cu
Habit: Wires to several cm
Colour: red brown
Fluorescence: none
Description: The wires were found in 1980
Native Silver
Formula: Ag
Prehnite
Formula: Ca2Al2Si3O10(OH)2
References:
Pumpellyite-(Mg)
Formula: Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
Quartz
Formula: SiO2
Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Tenorite
Formula: CuO
References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Copper1.AA.05Cu
Native Silver1.AA.05Ag
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Tenorite4.AB.10CuO
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Datolite9.AJ.20CaB(SiO4)(OH)
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Pumpellyite-(Mg)9.BG.20Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Saponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Microcline9.FA.30K(AlSi3O8)
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
'K Feldspar
var. Adularia'
-KAlSi3O8
'Chlorite Group'-
'K Feldspar'-

List of minerals for each chemical element

HHydrogen
H DatoliteCaB(SiO4)(OH)
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H PrehniteCa2Al2Si3O10(OH)2
H Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
H SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
BBoron
B DatoliteCaB(SiO4)(OH)
CCarbon
C CalciteCaCO3
OOxygen
O K Feldspar var. AdulariaKAlSi3O8
O CalciteCaCO3
O CupriteCu2O
O DatoliteCaB(SiO4)(OH)
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O LaumontiteCaAl2Si4O12 · 4H2O
O MicroclineK(AlSi3O8)
O PrehniteCa2Al2Si3O10(OH)2
O Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
O QuartzSiO2
O SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
O TenoriteCuO
MgMagnesium
Mg Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
Mg SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
AlAluminium
Al K Feldspar var. AdulariaKAlSi3O8
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
Al MicroclineK(AlSi3O8)
Al PrehniteCa2Al2Si3O10(OH)2
Al Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
Al SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
Si K Feldspar var. AdulariaKAlSi3O8
Si DatoliteCaB(SiO4)(OH)
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si LaumontiteCaAl2Si4O12 · 4H2O
Si MicroclineK(AlSi3O8)
Si PrehniteCa2Al2Si3O10(OH)2
Si Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
Si QuartzSiO2
Si SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
KPotassium
K K Feldspar var. AdulariaKAlSi3O8
K MicroclineK(AlSi3O8)
CaCalcium
Ca CalciteCaCO3
Ca DatoliteCaB(SiO4)(OH)
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Pumpellyite-(Mg)Ca2MgAl2[Si2O6OH][SiO4](OH)2(OH)
Ca SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
FeIron
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
CuCopper
Cu CupriteCu2O
Cu Native CopperCu
Cu TenoriteCuO
AgSilver
Ag Native SilverAg

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page 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.

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