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:
Eagle Mine, Marquette Co., Michigan, USA

Oldest recorded age at locality: 1100
Youngest recorded age at locality: 1100

mindat Locality ID: 225423
mindat URL: http://www.mindat.org/loc-225423.html

Tectonic Settings:

Total number of sublocalities beneath "Eagle Mine, Marquette Co., Michigan, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 46°44'53"N
Longitude: 87°52'53"W
Decimal Degree (lat, lon): 46.748055555556,-87.881388888889

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.

Baddeleyite	Chalcopyrite	Cubanite	Millerite	Nickeline	None	Olivine	Pentlandite	Pyrite	Sphalerite
Spinel	Wurtzite

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: C Cu Fe Mg Ni O S Si Zn Zr

Elements from minerals reported directly at this locality: C Cu Fe Mg Ni O S Si Zn Zr

Structural Groups for minerals in this locality:
Baddeleyite Chalcopyrite Cubanite Millerite Nickeline None Olivine Pentlandite Pyrite Sphalerite
Spinel Wurtzite

12 IMA Minerals at location:

Baddeleyite ()*	Chalcopyrite ()*	Cubanite ()*	Forsterite ()*	Graphite ()*
Magnetite ()*	Millerite ()*	Pentlandite ()*	Pyrite ()*	Pyrrhotite ()*
Sphalerite ()*	Violarite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Baddeleyite ()*	Baddeleyite	ZrO₂	1100	1100	238
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1100	1100	27198
Cubanite ()*	Cubanite Wurtzite	CuFe₂S₃	1100	1100	802
Forsterite ()*	Olivine	Mg₂(SiO₄)	1100	1100	1188
Graphite ()*	None	C	1100	1100	2812
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1100	1100	14899
Millerite ()*	Millerite	NiS	1100	1100	1066
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	1100	1100	1512
Pyrite ()*	Pyrite	FeS₂	1100	1100	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1100	1100	9056
Sphalerite ()*	Sphalerite	ZnS	1100	1100	21482
Violarite ()*	Spinel	FeNi₂S₄	1100	1100	380

1 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
	EG105_1057_012	1100	1100	1100										Ni, Cu, Pt, Pd, Rh, Ir, Os, Ru	225423	Eagle Mine, Marquette Co., Michigan, USA	Eagle	Begg et al. (2010)	10.2113/econgeo.105.6.1057	EG105_1057

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...