Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Groveland Mine, Randville, Menominee Iron Range, Dickinson Co., Michigan, USA

Oldest recorded age at locality: 1977.38
Youngest recorded age at locality: 1677.02

mindat Locality ID: 11628
mindat URL: http://www.mindat.org/loc-11628.html

Tectonic Settings:

Total number of sublocalities beneath "Groveland Mine, Randville, Menominee Iron Range, Dickinson Co., Michigan, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 45°59'31"N
Longitude: 87°58'57"W
Decimal Degree (lat, lon): 45.991944444444,-87.9825

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amphibole	Aubertite	Beryl	Calcite	Chalcanthite	Chalcopyrite	Columbite	Copiapite	Corundum	Diaspore
Epsomite	Feldspar	Fluorite	Garnet	Marcasite	Molybdenite	None	Pyrite	Pyroxene	Quartz
Spinel

Actinolite ()*	Albite ()*	Almandine ()*	Andradite ()*	Anorthite ()*
Augite ()*	Beryl ()*	Calcite ()*	Chalcanthite ()*	Chalcopyrite ()*
Copiapite ()*	Cummingtonite ()*	Diopside ()*	Dolomite ()*	Epsomite ()*
Goethite ()*	Grunerite ()*	Hematite ()*	Magnetite ()*	Marcasite ()*
Molybdenite ()*	Pyrite ()*	Quartz ()*	Tantalite-(Fe) ()*	Tremolite ()*
Uraninite ()*	Wilcoxite ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Be C Ca Cu F Fe H Mg Mo Na O S Si Ta U

Elements from minerals reported directly at this locality: Al Be C Ca Cu F Fe H Mg Mo Na O S Si Ta U

Structural Groups for minerals in this locality:
Amphibole Aubertite Beryl Calcite Chalcanthite Chalcopyrite Columbite Copiapite Corundum Diaspore
Epsomite Feldspar Fluorite Garnet Marcasite Molybdenite None Pyrite Pyroxene Quartz
Spinel

27 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	1977.38	1677.02	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	1977.38	1677.02	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1977.38	1677.02	2353
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1977.38	1677.02	1534
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	1977.38	1677.02	1036
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1977.38	1677.02	2060
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1977.38	1677.02	4286
Calcite ()*	Calcite	Ca(CO₃)	1977.38	1677.02	27770
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	1977.38	1677.02	925
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1977.38	1677.02	27198
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	1977.38	1677.02	382
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	1977.38	1677.02	327
Diopside ()*	Pyroxene	CaMgSi₂O₆	1977.38	1677.02	4135
Dolomite ()*	None	CaMg(CO₃)₂	1977.38	1677.02	9895
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	1977.38	1677.02	484
Goethite ()*	Diaspore	FeO(OH)	1977.38	1677.02	7437
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	1977.38	1677.02	223
Hematite ()*	Corundum	Fe₂O₃	1977.38	1677.02	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1977.38	1677.02	14899
Marcasite ()*	Marcasite	FeS₂	1977.38	1677.02	5674
Molybdenite ()*	Molybdenite	MoS₂	1977.38	1677.02	5800
Pyrite ()*	Pyrite	FeS₂	1977.38	1677.02	39462
Quartz ()*	Quartz	SiO₂	1977.38	1677.02	61156
Tantalite-(Fe) ()*	Columbite	Fe²⁺Ta₂O₆	1977.38	1677.02	99
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1977.38	1677.02	2562
Uraninite ()*	Fluorite	UO₂	1977.38	1677.02	2718
Wilcoxite ()*	Aubertite	MgAl(SO₄)₂F·17H₂O	1977.38	1677.02	11

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	USGS-Rb-Sr-00914	1977.38	1977.38	1977.38	Rb-Sr	initial age disturbed by later metamorphism		muscovite				Muscovite			11628	Groveland Mine, Randville, Menominee Iron Range, Dickinson Co., Michigan, USA		USGS-Rb-Sr		USGS-Rb-Sr
	USGS-Rb-Sr-00958	1677.02	1677.02	1677.02	Rb-Sr	initial age disturbed by later metamorphism		k-feldspar							11628	Groveland Mine, Randville, Menominee Iron Range, Dickinson Co., Michigan, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...