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:
Duluth Complex, Hibbing, St. Louis Co., Minnesota, USA

Oldest recorded age at locality: 1099.7
Youngest recorded age at locality: 1098.3

mindat Locality ID: 30391
mindat URL: http://www.mindat.org/loc-30391.html

Tectonic Settings:

Total number of sublocalities beneath "Duluth Complex, Hibbing, St. Louis Co., Minnesota, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Atacamite	Coronadite	Diaspore	None	Spinel

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: Cl Fe H Ni O

Elements from minerals reported directly at this locality: Cl Fe H Ni O

Structural Groups for minerals in this locality:
Atacamite Coronadite Diaspore None Spinel

4 IMA Minerals at location:

Akaganeite ()*	Goethite ()*	Hibbingite ()*	Magnetite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Akaganeite ()*	Coronadite	(Fe³⁺,Ni²⁺)₈(OH,O)₁₆Cl_1.25·nH₂O	1099.7	1098.3	63
Goethite ()*	Diaspore	FeO(OH)	1099.7	1098.3	7437
Hibbingite ()*	Atacamite	Fe²⁺₂(OH)₃Cl	1099.7	1098.3	13
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1099.7	1098.3	14899

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_701	Ni-Cu sulfides in intrusions related to flood basalts

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
	Michelle_701	1099.7	1098.3	1099±0.7		Age of deposit or general age of the metallogenic province								Ni, Cu	30391	Duluth Complex, Hibbing, St. Louis Co., Minnesota, USA	Duluth	Hoatson et al. (2006)	10.1016/j.oregeorev.2006.05.002	OGR29_177	See Table. 1 Global resources of nickel metal and ages of the major nickel sulfide deposits of the world. Age can refer to the age of a specific nickel sulfide deposit, or the general age of the metallogenic province containing nickel deposits that are similar to a dated deposit (e.g. 2705 Ma Komatiite-hosted deposits in the Eastern Goldfields Province).

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...