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:
Chippewa Co., Michigan, USA

mindat Locality ID: 107281
mindat URL: http://www.mindat.org/loc-107281.html

Tectonic Settings:

Total number of sublocalities beneath "Chippewa Co., Michigan, USA": 11
Total number of bottom-level sublocalities: 10

Number of Child Localities: 9
Child Localities:
Beadle's Brick Yard Clay Pit
Drummond Island
Lake Superior Beaches
Montero Sand Pit
N. Pickford Clay Pit
Neebish Island
Thornton Brick Yard Clay Pit
Unnamed Quarry
Zeeland Brick Company Clay Pit

Latitude: 46°18'35"N
Longitude: 84°28'10"W
Decimal Degree (lat, lon): 46.309722222222,-84.469444444444

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.

Baryte	Calcite	Cancrinite-sodalite	Marcasite	None	Quartz	Sodalite

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 Cl Fe Mg Na O S Si Sr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Baryte Calcite Cancrinite-sodalite Marcasite None Quartz Sodalite

6 IMA Minerals at location:

Calcite ()*	Celestine ()*	Dolomite ()*	Marcasite ()*	Quartz ()*
Sodalite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	1	220168	27770
Celestine ()*	Baryte	Sr(SO₄)	1	220162	1252
Dolomite ()*	None	CaMg(CO₃)₂	3	220162,220163,220164	9895
Marcasite ()*	Marcasite	FeS₂	1	220168	5674
Quartz ()*	Quartz	SiO₂	2	220165,220170	61156
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl	1	220165	444

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...