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:
Piedra Peak - Red Mountain Alunite Deposits (Colorado Tunnel), Piedra Peak-South River Peak-Red Mountain Area, Mineral Co., Colorado, USA

Oldest recorded age at locality: 27.1
Youngest recorded age at locality: 26.9

mindat Locality ID: 116131
mindat URL: http://www.mindat.org/loc-116131.html

Tectonic Settings:

Total number of sublocalities beneath "Piedra Peak - Red Mountain Alunite Deposits (Colorado Tunnel), Piedra Peak-South River Peak-Red Mountain Area, Mineral Co., Colorado, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 37°34'47"N
Longitude: 106°59'28"W
Decimal Degree (lat, lon): 37.579722222222,-106.99111111111

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.

Clay	Kaolinite	Mica	None	Pyrite	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 Fe H K O S Si

Elements from minerals reported directly at this locality: Al Fe H K O S Si

Structural Groups for minerals in this locality:
Clay Kaolinite Mica None Pyrite Quartz

5 IMA Minerals at location:

Alunite ()*	Kaolinite ()*	Muscovite ()*	Pyrite ()*	Quartz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	27.1	26.9	966
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	27.1	26.9	5591
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	27.1	26.9	17380
Pyrite ()*	Pyrite	FeS₂	27.1	26.9	39462
Quartz ()*	Quartz	SiO₂	27.1	26.9	61156

5 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
NAVDAT-45935	27.1	26.9	27±0.1	45935	116131	Piedra Peak - Red Mountain Alunite Deposits (Colorado Tunnel), Piedra Peak-South River Peak-Red Mountain Area, Mineral Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-45936	27.1	26.9	27±0.1	45936	116131	Piedra Peak - Red Mountain Alunite Deposits (Colorado Tunnel), Piedra Peak-South River Peak-Red Mountain Area, Mineral Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-45937	27.1	26.9	27±0.1	45937	116131	Piedra Peak - Red Mountain Alunite Deposits (Colorado Tunnel), Piedra Peak-South River Peak-Red Mountain Area, Mineral Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-45945	27.1	26.9	27±0.1	45945	116131	Piedra Peak - Red Mountain Alunite Deposits (Colorado Tunnel), Piedra Peak-South River Peak-Red Mountain Area, Mineral Co., Colorado, USA	NAVDAT	NAVDAT
NAVDAT-45946	27.1	26.9	27±0.1	45946	116131	Piedra Peak - Red Mountain Alunite Deposits (Colorado Tunnel), Piedra Peak-South River Peak-Red Mountain Area, Mineral Co., Colorado, USA	NAVDAT	NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...