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:
Caspian, Menominee Iron Range, Iron Co., Michigan, USA

mindat Locality ID: 213924
mindat URL: http://www.mindat.org/loc-213924.html

Tectonic Settings:

Total number of sublocalities beneath "Caspian, Menominee Iron Range, Iron Co., Michigan, USA": 28
Total number of bottom-level sublocalities: 25

Number of Child Localities: 5
Child Localities:
Borland Reserve Prospect
Caspian Mine
Charboone Exploration Prospect
Edlund Exploration
Morgan Exploration

Latitude: 46°4'12"N
Longitude: 88°37'37"W
Decimal Degree (lat, lon): 46.07,-88.626944444444

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.

Calcite	Clay	Corundum	Diaspore	Kaolinite	None	Pyrite	Spinel	Stilpnomelane

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 C Ca Fe H K Mg Mn Na O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Clay Corundum Diaspore Kaolinite None Pyrite Spinel Stilpnomelane

8 IMA Minerals at location:

Alunite ()*	Goethite ()*	Hausmannite ()*	Hematite ()*	Kaolinite ()*
Pyrite ()*	Siderite ()*	Stilpnomelane ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	1	220810	966
Goethite ()*	Diaspore	FeO(OH)	2	220801,220810	7437
Hausmannite ()*	Spinel	Mn²⁺Mn³⁺₂O₄	1	220810	350
Hematite ()*	Corundum	Fe₂O₃	2	220801,220810	14640
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1	220810	5591
Pyrite ()*	Pyrite	FeS₂	2	220801,220810	39462
Siderite ()*	Calcite	Fe(CO₃)	2	220801,220810	6417
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O	2	220801,220810	456

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...