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

Oldest recorded age at locality: 2554.93
Youngest recorded age at locality: 2554.93

mindat Locality ID: 24593
mindat URL: http://www.mindat.org/loc-24593.html

Tectonic Settings:

Total number of sublocalities beneath "Republic, Marquette Iron Range, Marquette Co., Michigan, USA": 15
Total number of bottom-level sublocalities: 14

Number of Child Localities: 13
Child Localities:
Ajibik Quartzite
Columbia Mine (Kloman Mine)
M-95 Bridge
Magnetic Mine
Marquette Mine
Migmatite Zone
Republic Granite
Republic Mine
Republic Mine (West Republic Mine)
Republic Mountain
Smith Mountain
Unnamed Locality
Unnamed Pegmatite

Latitude: 46°24'55"N
Longitude: 88°'23"W
Decimal Degree (lat, lon): 46.415277777778,-88.006388888889

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	Aragonite	Baryte	Beryl	Brannerite	Calcite	Chalcopyrite	Chlorite	Chloritoid
Clay	Corundum	Diaspore	Feldspar	Gadolinite	Garnet	Gypsum	Kaolinite	Malachite	Mica
Molybdenite	None	Not in a structural group	Olivine	Pyrite	Pyrophyllite	Pyroxene	Quartz	Scheelite	Serpentine
Spinel	Staurolite	Stilpnomelane	Talc

Actinolite ()*	Almandine ()*	Anatase ()*	Andalusite ()*	Ankerite ()*
Anorthite ()*	Aragonite ()*	Augite ()*	Beryl ()*	Brannerite ()*
Calcite ()*	Celestine ()*	Chalcopyrite ()*	Chamosite ()*	Chloritoid ()*
Cummingtonite ()*	Datolite ()*	Diopside ()*	Dolomite ()*	Fayalite ()*
Ferro-hornblende ()*	Goethite ()*	Greenalite ()*	Grunerite ()*	Gypsum ()*
Hedenbergite ()*	Hematite ()*	Ilmenite ()*	Kaolinite ()*	Kutnohorite ()*
Magnetite ()*	Malachite ()*	Microcline ()*	Minnesotaite ()*	Molybdenite ()*
Muscovite ()*	Orthoclase ()*	Pyrite ()*	Pyrophyllite ()*	Quartz ()*
Riebeckite ()*	Scheelite ()*	Siderite ()*	Sillimanite ()*	Staurolite ()*
Stilpnomelane ()*	Tremolite ()*

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 B Be C Ca Cu Fe H K Mg Mn Mo Na O S Si Sr Ti U W

Elements from minerals reported directly at this locality: Al Ca Fe Mg O Si

Structural Groups for minerals in this locality:
Amphibole Andalusite Aragonite Baryte Beryl Brannerite Calcite Chalcopyrite Chlorite Chloritoid
Clay Corundum Diaspore Feldspar Gadolinite Garnet Gypsum Kaolinite Malachite Mica
Molybdenite None Not in a structural group Olivine Pyrite Pyrophyllite Pyroxene Quartz Scheelite Serpentine
Spinel Staurolite Stilpnomelane Talc

47 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# 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	222366	3419
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			5	222365,222366,222370,222374,222375	2353
Anatase ()*	Not in a structural group	TiO₂			1	222368	2162
Andalusite ()*	Andalusite	Al₂SiO₅			2	222370,222371	1310
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			2	222370,222373	3092
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	2554.93	2554.93	0		1036
Aragonite ()*	Aragonite	Ca(CO₃)			1	222370	3250
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	2554.93	2554.93	0		2060
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			2	222371,222377	4286
Brannerite ()*	Brannerite	UTi₂O₆			1	222368	248
Calcite ()*	Calcite	Ca(CO₃)	2554.93	2554.93	4	222364,222366,222370,222373	27770
Celestine ()*	Baryte	Sr(SO₄)			1	222370	1252
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			2	222366,222370	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈			2	222369,222370	577
Chloritoid ()*	Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂			1	222370	376
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			1	222370	327
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)			1	222367	498
Diopside ()*	Pyroxene	CaMgSi₂O₆			1	222370	4135
Dolomite ()*	None	CaMg(CO₃)₂			1	222370	9895
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)			1	222370	371
Ferro-hornblende ()*	Amphibole	Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂			1	222370	271
Goethite ()*	Diaspore	FeO(OH)	2554.93	2554.93	4	222364,222367,222370,222373	7437
Greenalite ()*	Clay Serpentine	(Fe²⁺,Fe³⁺)_2-3Si₂O₅(OH)₄			1	222373	61
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂			4	222363,222365,222366,222370	223
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	222370	6890
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆			1	222370	741
Hematite ()*	Corundum	Fe₂O₃	2554.93	2554.93	3	222364,222367,222370	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			2	222368,222370	5433
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	222367	5591
Kutnohorite ()*	None	CaMn²⁺(CO₃)₂			1	222370	234
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2554.93	2554.93	6	222363,222364,222366,222367,222370,222373	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	222370	12537
Microcline ()*	Feldspar	K(AlSi₃O₈)			2	222370,222371	4924
Minnesotaite ()*	Clay Talc	Fe²⁺₃Si₄O₁₀(OH)₂			1	222373	61
Molybdenite ()*	Molybdenite	MoS₂			2	222371,222377	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			2	222370,222371	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			1	222369	2349
Pyrite ()*	Pyrite	FeS₂	2554.93	2554.93	3	222364,222366,222370	39462
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂			1	222370	771
Quartz ()*	Quartz	SiO₂	2554.93	2554.93	7	222364,222366,222367,222370,222371,222373,222377	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂			2	222370,222372	375
Scheelite ()*	Scheelite	Ca(WO₄)			1	222366	4894
Siderite ()*	Calcite	Fe(CO₃)			2	222370,222373	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅			2	222370,222376	1516
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)			1	222370	978
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O			1	222373	456
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	222370	2562

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
	USGS-Rb-Sr-00707	2554.93	2554.93	2554.93	Rb-Sr	minimum age of intrusion		whole rock							125039	Columbia Mine (Kloman Mine), Republic, Marquette Iron Range, Marquette 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...