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:
Michigamme, Marquette Iron Range, Marquette Co., Michigan, USA

mindat Locality ID: 125752
mindat URL: http://www.mindat.org/loc-125752.html

Tectonic Settings:

Total number of sublocalities beneath "Michigamme, Marquette Iron Range, Marquette Co., Michigan, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Bijiki Schist
Lake Michigamme
Lake Michigamme (2)
Michigamme Mine (Mt Shasta Mine)
Webster Mine

Latitude: 46°31'59"N
Longitude: 88°6'59"W
Decimal Degree (lat, lon): 46.533055555556,-88.116388888889

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	Andalusite	Beryl	Calcite	Chalcopyrite	Chlorite	Chloritoid	Clay	Corundum	Diaspore
Garnet	Mica	Molybdenite	None	Pyrite	Quartz	Spinel	Staurolite

Actinolite ()*	Almandine ()*	Andalusite ()*	Ankerite ()*	Beryl ()*
Chalcopyrite ()*	Chamosite ()*	Chloritoid ()*	Clinochlore ()*	Cummingtonite ()*
Goethite ()*	Graphite ()*	Grunerite ()*	Hematite ()*	Magnetite ()*
Molybdenite ()*	Muscovite ()*	Pyrite ()*	Quartz ()*	Siderite ()*
Staurolite ()*

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 Fe H K Mg Mo O S Si

Elements from minerals reported directly at this locality: C Mo S

Structural Groups for minerals in this locality:
Amphibole Andalusite Beryl Calcite Chalcopyrite Chlorite Chloritoid Clay Corundum Diaspore
Garnet Mica Molybdenite None Pyrite Quartz Spinel Staurolite

21 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	1	222293	3419
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1	222293	2353
Andalusite ()*	Andalusite	Al₂SiO₅	3	222291,222292,222293	1310
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	222293	3092
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	222292	4286
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	222293	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈	1	222293	577
Chloritoid ()*	Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂	2	222292,222293	376
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	1	222293	1756
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	1	222293	327
Goethite ()*	Diaspore	FeO(OH)	1	222293	7437
Graphite ()*	None	C	0		2812
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	2	222290,222293	223
Hematite ()*	Corundum	Fe₂O₃	1	222293	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	3	222290,222292,222293	14899
Molybdenite ()*	Molybdenite	MoS₂	0		5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	222292	17380
Pyrite ()*	Pyrite	FeS₂	1	222293	39462
Quartz ()*	Quartz	SiO₂	2	222292,222293	61156
Siderite ()*	Calcite	Fe(CO₃)	1	222293	6417
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	1	222292	978

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...