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, Calumet Township, Houghton Co., Michigan, USA

mindat Locality ID: 33328
mindat URL: http://www.mindat.org/loc-33328.html

Tectonic Settings:

Total number of sublocalities beneath "Tamarack, Calumet Township, Houghton Co., Michigan, USA": 6
Total number of bottom-level sublocalities: 5

Number of Child Localities: 3
Child Localities:
Tamarack Junior Mine (Tamarack Jr. Mine)
Tamarack Mine
Unnamed Copper Prospect (MRDS - 10218660)

Latitude: 47°15'30"N
Longitude: 88°27'38"W
Decimal Degree (lat, lon): 47.258333333333,-88.460555555556

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

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

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:

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

14 IMA Minerals at location:

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	1	220518	5509
Calcite ()*	Calcite	Ca(CO₃)	2	220517,220518	27770
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	1	220518	3531
Copper ()*	Copper	Cu	2	220517,220518	3846
Cuprite ()*	Not in a structural group	Cu₂O	1	220518	2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)	2	220518,220519	498
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2	220517,220518	8173
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1	220517	1271
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	220518	12537
Manganite ()*	Rutile	Mn³⁺O(OH)	1	220518	770
Powellite ()*	Scheelite	Ca(MoO₄)	1	220518	494
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	2	220517,220518	1898
Quartz ()*	Quartz	SiO₂	2	220517,220518	61156
Saponite ()*	Clay Smectite-vermiculite	(Ca,Na)_0.3(Mg,Fe)₃(Si,Al)₄O₁₀(OH)₂·4H₂O	1	220518	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...