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:
Lone Pine Feldspar Quarry (Claim: Lone Pine; MS 20867), Devils Head Pegmatite District, Douglas Co., Colorado, USA

Oldest recorded age at locality: 1079
Youngest recorded age at locality: 1075

mindat Locality ID: 69064
mindat URL: http://www.mindat.org/loc-69064.html

Tectonic Settings:

Total number of sublocalities beneath "Lone Pine Feldspar Quarry (Claim: Lone Pine; MS 20867), Devils Head Pegmatite District, Douglas Co., Colorado, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 39°9'25"N
Longitude: 105°3'26"W
Decimal Degree (lat, lon): 39.156944444444,-105.05722222222

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.

Feldspar	None	Zircon

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 K O P Si Th Y

Elements from minerals reported directly at this locality: Al K O P Si Th Y

Structural Groups for minerals in this locality:
Feldspar None Zircon

3 IMA Minerals at location:

Microcline ()*	Thorite ()*	Xenotime-(Y) ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Microcline ()*	Feldspar	K(AlSi₃O₈)	1079	1075	4924
Thorite ()*	Zircon	Th(SiO₄)	1079	1075	1006
Xenotime-(Y) ()*	Zircon	Y(PO₄)	1079	1075	939

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
	Bradley_2012_132	1079	1075	1077±2	Ar/Ar						Yes				3668	Pikes Peak, El Paso Co., Colorado, USA	Pike's Peak	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...