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:
Ishpeming, Marquette Co., Michigan, USA

mindat Locality ID: 24242
mindat URL: http://www.mindat.org/loc-24242.html

Tectonic Settings:

Total number of sublocalities beneath "Ishpeming, Marquette Co., Michigan, USA": 10
Total number of bottom-level sublocalities: 9

Number of Child Localities: 9
Child Localities:
Diorite
Ford Prospect
Goodrich Quartzite
Michigan Au Mine #6
Peppin Prospect
Superior Mine
Unnamed Locality
Unnamed Location
Verde Antique Quarry

Latitude: 46°29'15"N
Longitude: 87°40'"W
Decimal Degree (lat, lon): 46.4875,-87.666666666667

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	Clay	Copper	Corundum	Monazite	None	Quartz	Serpentine	Staurolite	Talc

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 Au C Ca Ce Fe H Mg O P Si

Elements from minerals reported directly at this locality: Fe O

Structural Groups for minerals in this locality:
Amphibole Clay Copper Corundum Monazite None Quartz Serpentine Staurolite Talc

10 IMA Minerals at location:

Antigorite ()*	Chrysotile ()*	Dolomite ()*	Gold ()*	Grunerite ()*
Hematite ()*	Monazite-(Ce) ()*	Quartz ()*	Staurolite ()*	Talc ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	222137	708
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	222137	951
Dolomite ()*	None	CaMg(CO₃)₂	1	222137	9895
Gold ()*	Copper	Au	5	222129,222130,222132,222133,222134	30554
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	1	222135	223
Hematite ()*	Corundum	Fe₂O₃	0		14640
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	1	222131	945
Quartz ()*	Quartz	SiO₂	3	222132,222134,222137	61156
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	1	222136	978
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	222137	3337

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...