Movatterモバイル変換

[0]ホーム
URL:

Log InRegister
AboutSupport UsPhotosDiscussionsSearchLearnMore
Quick Links :The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Minneapolis adit, J-M Reef (Howland Reef), Stillwater County, Montana, USAi
Regional Level Types
Minneapolis aditAdit
J-M Reef (Howland Reef)Reef
Stillwater CountyCounty
MontanaState
USACountry

This page is currently not sponsored.Click here to sponsor this page.
PhotosMapsSearch
Standard
Specimen Photos (4)Photos by ColorGalleryPhoto StatisticsAdd Photo
Mineral SearchSimilar LocalitiesPredictive MineralogySearch GoogleType Localities in Region
Latitude & Longitude (WGS84):
45° North , 109° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~77km
GRN:
N31W56
Type:
Adit
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Mindat Locality ID:
16398
Long-form identifier:
mindat:1:2:16398:6
GUID (UUID V4):
0


No description has been added for this locality.Can you add one?

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘ'Apatite'
Formula:Ca5(PO4)3(Cl/F/OH)
ⓘArsenopalladinite
Formula:Pd8(As,Sb)3
ⓘAtokite
Formula:(Pd,Pt)3Sn
ⓘBraggite
Formula:PdPt3S4
Habit: Crystals to 8mm
ⓘChalcopyrite
Formula:CuFeS2
ⓘ'Chlorite Group'
ⓘCooperite
Formula:PtS
ⓘCubanite
Formula:CuFe2S3
ⓘEnstatite
Formula:Mg2Si2O6
ⓘEnstatite var. Bronzite
Formula:(Mg,Fe2+)2[SiO3]2
ⓘ'Fayalite-Forsterite Series'
ⓘGold
Formula:Au
ⓘGold var. Palladium-bearing Gold
Formula:(Au,Pd)
ⓘ'Hornblende Root Name Group'
Formula:◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘIsoferroplatinum
Formula:Pt3Fe
ⓘKeithconnite
Formula:Pd20Te7
ⓘKojonenite (TL)
Formula:Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8)
Type Locality:
ⓘKotulskite
Formula:Pd(Te,Bi)2-x (x ≈ 0.4)
ⓘLaurite
Formula:RuS2
Description: Associated with unnamed (Ir,Ru)S.
ⓘMackinawite
Formula:FeS
ⓘMagnetite
Formula:Fe2+Fe3+2O4
ⓘMoncheite
Formula:Pt(Te,Bi)2
ⓘPalarstanide
Formula:Pd5(Sn,As)2
ⓘPentlandite
Formula:(NixFey)Σ9S8
ⓘPhlogopite
Formula:KMg3(AlSi3O10)(OH)2
ⓘ'Plagioclase'
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
ⓘPlumbopalladinite
Formula:Pd3Pb2
ⓘPotarite
Formula:PdHg
ⓘPyrite
Formula:FeS2
ⓘPyrrhotite
Formula:Fe1-xS
ⓘ'Serpentine Subgroup'
Formula:D3[Si2O5](OH)4
ⓘSperrylite var. Platarsite
Formula:Pt(As,S)2
ⓘStannopalladinite
Formula:(Pd,Cu)3Sn
ⓘTalc
Formula:Mg3Si4O10(OH)2
ⓘTelluropalladinite
Formula:Pd9Te4
ⓘTremolite
Formula:◻Ca2Mg5(Si8O22)(OH)2
ⓘTulameenite
Formula:Pt2CuFe
ⓘVysotskite
Formula:PdS
ⓘZvyagintsevite
Formula:Pd3Pb

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGold1.AA.05Au
ⓘvar. Palladium-bearing Gold1.AA.05(Au,Pd)
ⓘPotarite1.AD.25PdHg
ⓘAtokite1.AG.10(Pd,Pt)3Sn
ⓘZvyagintsevite1.AG.10Pd3Pb
ⓘPlumbopalladinite1.AG.25Pd3Pb2
ⓘStannopalladinite1.AG.25(Pd,Cu)3Sn
ⓘIsoferroplatinum1.AG.35Pt3Fe
ⓘTulameenite1.AG.40Pt2CuFe
Group 2 - Sulphides and Sulfosalts
ⓘArsenopalladinite2.AC.10cPd8(As,Sb)3
ⓘPalarstanide2.AC.20bPd5(Sn,As)2
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘKeithconnite2.BC.20Pd20Te7
ⓘTelluropalladinite2.BC.30Pd9Te4
ⓘKojonenite (TL)2.BC.35Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8)
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCubanite2.CB.55aCuFe2S3
ⓘKotulskite2.CC.05Pd(Te,Bi)2-x (x ≈ 0.4)
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMackinawite2.CC.25FeS
ⓘBraggite2.CC.35aPdPt3S4
ⓘVysotskite2.CC.35aPdS
ⓘCooperite2.CC.35bPtS
ⓘMoncheite2.EA.20Pt(Te,Bi)2
ⓘLaurite2.EB.05aRuS2
ⓘSperrylite
var. Platarsite		2.EB.05aPt(As,S)2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
Group 9 - Silicates
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘvar. Bronzite9.DA.05(Mg,Fe2+)2[SiO3]2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
HⓘPhlogopiteKMg3(AlSi3O10)(OH)2
HⓘTalcMg3Si4O10(OH)2
HⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
HⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
HⓘSerpentine SubgroupD3[Si2O5](OH)4
HⓘApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
OⓘEnstatiteMg2Si2O6
OⓘMagnetiteFe2+Fe23+O4
OⓘPhlogopiteKMg3(AlSi3O10)(OH)2
OⓘTalcMg3Si4O10(OH)2
OⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
OⓘEnstatite var.Bronzite(Mg,Fe2+)2[SiO3]2
OⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
OⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
OⓘSerpentine SubgroupD3[Si2O5](OH)4
OⓘApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
FⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
FⓘApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
NaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
MgⓘEnstatiteMg2Si2O6
MgⓘPhlogopiteKMg3(AlSi3O10)(OH)2
MgⓘTalcMg3Si4O10(OH)2
MgⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
MgⓘEnstatite var.Bronzite(Mg,Fe2+)2[SiO3]2
AlAluminium
AlⓘPhlogopiteKMg3(AlSi3O10)(OH)2
AlⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
AlⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
SiⓘEnstatiteMg2Si2O6
SiⓘPhlogopiteKMg3(AlSi3O10)(OH)2
SiⓘTalcMg3Si4O10(OH)2
SiⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
SiⓘEnstatite var.Bronzite(Mg,Fe2+)2[SiO3]2
SiⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiⓘSerpentine SubgroupD3[Si2O5](OH)4
PPhosphorus
PⓘApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
SⓘBraggitePdPt3S4
SⓘChalcopyriteCuFeS2
SⓘCooperitePtS
SⓘCubaniteCuFe2S3
SⓘLauriteRuS2
SⓘMackinawiteFeS
SⓘPentlandite(NixFey)Σ9S8
SⓘSperrylite var.PlatarsitePt(As,S)2
SⓘPyriteFeS2
SⓘPyrrhotiteFe1-xS
SⓘVysotskitePdS
ClChlorine
ClⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
ClⓘApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
KⓘPhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
CaⓘTremolite◻Ca2Mg5(Si8O22)(OH)2
CaⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
CaⓘApatiteCa5(PO4)3(Cl/F/OH)
FeIron
FeⓘChalcopyriteCuFeS2
FeⓘCubaniteCuFe2S3
FeⓘIsoferroplatinumPt3Fe
FeⓘMackinawiteFeS
FeⓘMagnetiteFe2+Fe23+O4
FeⓘPentlandite(NixFey)Σ9S8
FeⓘPyriteFeS2
FeⓘPyrrhotiteFe1-xS
FeⓘTulameenitePt2CuFe
FeⓘEnstatite var.Bronzite(Mg,Fe2+)2[SiO3]2
NiNickel
NiⓘPentlandite(NixFey)Σ9S8
CuCopper
CuⓘChalcopyriteCuFeS2
CuⓘCubaniteCuFe2S3
CuⓘStannopalladinite(Pd,Cu)3Sn
CuⓘTulameenitePt2CuFe
AsArsenic
AsⓘArsenopalladinitePd8(As,Sb)3
AsⓘPalarstanidePd5(Sn,As)2
AsⓘSperrylite var.PlatarsitePt(As,S)2
RuRuthenium
RuⓘLauriteRuS2
PdPalladium
PdⓘArsenopalladinitePd8(As,Sb)3
PdⓘAtokite(Pd,Pt)3Sn
PdⓘBraggitePdPt3S4
PdⓘKeithconnitePd20Te7
PdⓘKotulskitePd(Te,Bi)2-x (x ≈ 0.4)
PdⓘPalarstanidePd5(Sn,As)2
PdⓘPlumbopalladinitePd3Pb2
PdⓘPotaritePdHg
PdⓘStannopalladinite(Pd,Cu)3Sn
PdⓘTelluropalladinitePd9Te4
PdⓘVysotskitePdS
PdⓘZvyagintsevitePd3Pb
PdⓘGold var.Palladium-bearing Gold(Au,Pd)
PdⓘKojonenitePd7-xSnTe2 (0.3 ≤ x ≤ 0.8)
SnTin
SnⓘAtokite(Pd,Pt)3Sn
SnⓘPalarstanidePd5(Sn,As)2
SnⓘStannopalladinite(Pd,Cu)3Sn
SnⓘKojonenitePd7-xSnTe2 (0.3 ≤ x ≤ 0.8)
SbAntimony
SbⓘArsenopalladinitePd8(As,Sb)3
TeTellurium
TeⓘKeithconnitePd20Te7
TeⓘKotulskitePd(Te,Bi)2-x (x ≈ 0.4)
TeⓘMoncheitePt(Te,Bi)2
TeⓘTelluropalladinitePd9Te4
TeⓘKojonenitePd7-xSnTe2 (0.3 ≤ x ≤ 0.8)
PtPlatinum
PtⓘBraggitePdPt3S4
PtⓘCooperitePtS
PtⓘIsoferroplatinumPt3Fe
PtⓘMoncheitePt(Te,Bi)2
PtⓘSperrylite var.PlatarsitePt(As,S)2
PtⓘTulameenitePt2CuFe
AuGold
AuⓘGoldAu
AuⓘGold var.Palladium-bearing Gold(Au,Pd)
HgMercury
HgⓘPotaritePdHg
PbLead
PbⓘPlumbopalladinitePd3Pb2
PbⓘZvyagintsevitePd3Pb
BiBismuth
BiⓘKotulskitePd(Te,Bi)2-x (x ≈ 0.4)
BiⓘMoncheitePt(Te,Bi)2

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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

www.cannonmicroprobe.com/Mineral_Specimens.htm
Criddle, Alan J., Stanley, Christopher J. (1985) Characteristic optical data for cooperite, braggite and vysotskite.The Canadian Mineralogist, 23 (2) 149-162
Barnes, Stephen J., Naldrett, Anthony J. (1985) Geochemistry of the J-M (Howland) Reef of the Stillwater Complex, Minneapolis Adit area; I, Sulfide chemistry and sulfide-olivine equilibrium.Economic Geology, 80 (3) 627-645doi:10.2113/gsecongeo.80.3.627
Raedeke, L. D., Vian, R. W. (1986) A three-dimensional view of mineralization in the Stillwater J-M Reef.Economic Geology, 81 (5) 1187-1195doi:10.2113/gsecongeo.81.5.1187
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) New minerals and nomenclature modifications approved in 2014, CNMNC Newsletter No 20.Mineralogical Magazine, 78 (3) 549-558doi:10.1180/minmag.2014.078.3.05
Quick NavTopMineral ListOther RegionsReferences
 
and/or 
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: April 18, 2025 18:41:28 Page updated: April 11, 2025 17:41:58