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:
Rico District (Pioneer District), Montezuma Co., Colorado, USA

Oldest recorded age at locality: 100
Youngest recorded age at locality: 33.9

mindat Locality ID: 116370
mindat URL: http://www.mindat.org/loc-116370.html

Tectonic Settings:

Total number of sublocalities beneath "Rico District (Pioneer District), Montezuma Co., Colorado, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Unknown Gold Prospect (MRDS - 10191005)

Latitude: 37°38'2"N
Longitude: 108°4'34"W
Decimal Degree (lat, lon): 37.633888888889,-108.07611111111

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.

Alunite	Andalusite	Beryl	Calcite	Clay	Columbite	Diaspore	Kaolinite	Mica	Molybdenite
None	Prehnite	Pyrophyllite	Spinel	Talc

Alunite ()*	Andalusite ()*	Cordierite ()*	Diaspore ()*	Hübnerite ()*
Jarosite ()*	Kaolinite ()*	Magnetite ()*	Molybdenite ()*	Muscovite ()*
Prehnite ()*	Pyrophyllite ()*	Rhodochrosite ()*	Talc ()*

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 Mo O S Si W

Elements from minerals reported directly at this locality: Al C Ca Fe H K Mg Mn Mo O S Si W

Structural Groups for minerals in this locality:
Alunite Andalusite Beryl Calcite Clay Columbite Diaspore Kaolinite Mica Molybdenite
None Prehnite Pyrophyllite Spinel Talc

14 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	100	33.9	966
Andalusite ()*	Andalusite	Al₂SiO₅	100	33.9	1310
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	100	33.9	1008
Diaspore ()*	Diaspore	AlO(OH)	100	33.9	481
Hübnerite ()*	Columbite	Mn²⁺(WO₄)	100	33.9	469
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	100	33.9	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	100	33.9	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	100	33.9	14899
Molybdenite ()*	Molybdenite	MoS₂	100	33.9	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	100	33.9	17380
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	100	33.9	1898
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂	100	33.9	771
Rhodochrosite ()*	Calcite	Mn(CO₃)	100	33.9	1711
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	100	33.9	3337

1 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
	sedznpb-00486	100	33.9	Late Cretaceous to Eocene											116370	Rico District (Pioneer District), Montezuma Co., Colorado, USA	Rico	Singer et al. (2009)		USGSOFR2009-1252

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...