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:
Centennial No. 2 Shaft, Centennial Mine, Centennial, Houghton Co., Michigan, USA

Oldest recorded age at locality: 1080
Youngest recorded age at locality: 1014

mindat Locality ID: 55718
mindat URL: http://www.mindat.org/loc-55718.html

Tectonic Settings:

Total number of sublocalities beneath "Centennial No. 2 Shaft, Centennial Mine, Centennial, Houghton Co., Michigan, 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.

Analcime	Anthonyite	Atacamite	Baryte	Calcite	Clinozoisite	Connellite	Copper	Epidote	Gadolinite
Malachite	None	Not in a structural group	Prehnite	Quartz

Analcime ()*	Atacamite ()*	Baryte ()*	Buttgenbachite ()*	Calcite ()*
Calumetite ()*	Chalconatronite ()*	Copper ()*	Cuprite ()*	Datolite ()*
Epidote ()*	Laumontite ()*	Malachite ()*	Paratacamite ()*	Prehnite ()*
Quartz ()*

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 Ba C Ca Cl Cu Fe H N Na O S Si Zn

Elements from minerals reported directly at this locality: Al B Ba C Ca Cl Cu Fe H N Na O S Si Zn

Structural Groups for minerals in this locality:
Analcime Anthonyite Atacamite Baryte Calcite Clinozoisite Connellite Copper Epidote Gadolinite
Malachite None Not in a structural group Prehnite Quartz

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	1080	1014	1627
Atacamite ()*	Atacamite	Cu₂Cl(OH)₃	1080	1014	544
Baryte ()*	Baryte	Ba(SO₄)	1080	1014	11547
Buttgenbachite ()*	Connellite	Cu₃₆(NO₃)₂Cl₈(OH)₆₂·nH₂O	1080	1014	13
Calcite ()*	Calcite	Ca(CO₃)	1080	1014	27770
Calumetite ()*	Anthonyite	CaCu₄(OH)₈Cl₂·3.5H₂O	1080	1014	11
Chalconatronite ()*	None	Na₂Cu(CO₃)₂·3H₂O	1080	1014	23
Copper ()*	Copper	Cu	1080	1014	3846
Cuprite ()*	Not in a structural group	Cu₂O	1080	1014	2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)	1080	1014	498
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1080	1014	8173
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1080	1014	1271
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1080	1014	12537
Paratacamite ()*	Atacamite	Cu₃(Cu,Zn)Cl₂(OH)₆	1080	1014	158
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	1080	1014	1898
Quartz ()*	Quartz	SiO₂	1080	1014	61156

2 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
	Kristen002199	1080	1014	1047±33	Rb-Sr						Yes				11425	Keweenaw Peninsula, Michigan, USA	Keweenaw Peninsula	Bornhorst et al. (1988)	10.2113/gsecongeo.83.3.619	EG83_619
	Kristen002200	1080	1040	1060±20							Yes				11425	Keweenaw Peninsula, Michigan, USA	Keweenaw Peninsula	Bornhorst et al. (1988)	10.2113/gsecongeo.83.3.619	EG83_619

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...