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:
Tamarack Mine, Tamarack, Calumet Township, Houghton Co., Michigan, USA

mindat Locality ID: 23692
mindat URL: http://www.mindat.org/loc-23692.html

Tectonic Settings:

Total number of sublocalities beneath "Tamarack Mine, Tamarack, Calumet Township, Houghton Co., Michigan, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
No. 3 Shaft
No. 4 Shaft
No. 5 Shaft

Latitude: 47°15'38"N
Longitude: 88°27'36"W
Decimal Degree (lat, lon): 47.260555555556,-88.46

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.

Allophane	Calcite	Clay	Clinozoisite	Copper	Epidote	Gadolinite	Malachite	None	Not in a structural group
Prehnite	Quartz	Rutile	Scheelite	Smectite-vermiculite

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 C Ca Cu Fe H Mg Mn Mo Na O Si

Elements from minerals reported directly at this locality: Al C Ca Cu Fe H Mg Mn Mo Na O Si

Structural Groups for minerals in this locality:
Allophane Calcite Clay Clinozoisite Copper Epidote Gadolinite Malachite None Not in a structural group
Prehnite Quartz Rutile Scheelite Smectite-vermiculite

13 IMA Minerals at location:

Azurite ()*	Calcite ()*	Chrysocolla ()*	Copper ()*	Cuprite ()*
Datolite ()*	Epidote ()*	Malachite ()*	Manganite ()*	Powellite ()*
Prehnite ()*	Quartz ()*	Saponite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	0		5509
Calcite ()*	Calcite	Ca(CO₃)	0		27770
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	0		3531
Copper ()*	Copper	Cu	0		3846
Cuprite ()*	Not in a structural group	Cu₂O	0		2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)	1	220519	498
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	0		8173
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	0		12537
Manganite ()*	Rutile	Mn³⁺O(OH)	0		770
Powellite ()*	Scheelite	Ca(MoO₄)	0		494
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	0		1898
Quartz ()*	Quartz	SiO₂	0		61156
Saponite ()*	Clay Smectite-vermiculite	(Ca,Na)_0.3(Mg,Fe)₃(Si,Al)₄O₁₀(OH)₂·4H₂O	0		301

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...