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:
Granite Mountain Quarry No. 2, Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USA

Oldest recorded age at locality: 99
Youngest recorded age at locality: 85

mindat Locality ID: 157939
mindat URL: http://www.mindat.org/loc-157939.html

Tectonic Settings:

Total number of sublocalities beneath "Granite Mountain Quarry No. 2, Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, 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.

None	Pyroxene

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: Fe Na O Si

Elements from minerals reported directly at this locality: Fe Na O Si

Structural Groups for minerals in this locality:
None Pyroxene

1 IMA Minerals at location:

Aegirine ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	99	85	0		1022

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
AJS265_848-00005	93	85	89±4	K-Ar	biotite	Yes		14080	Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USA	Granite Mountain	Zartman et al. (1967)	10.2475/ajs.265.10.848	AJS265_848
AJS265_848-00006	99	89	94±5	K-Ar	biotite	Yes		14080	Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USA	Granite Mountain	Zartman et al. (1967)	10.2475/ajs.265.10.848	AJS265_848
AJS265_848-00007	92	86	89±3	Rb-Sr	biotite	Yes		14080	Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USA	Granite Mountain	Zartman et al. (1967)	10.2475/ajs.265.10.848	AJS265_848
Bradley_2012_090	89	87	88±1		titanite	Yes	Titanite	14080	Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USA	Granite Mountain	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL
R100097	Granite Mountain Quarry No. 2, Granite Mountain Area, Little Rock, Pulaski Co., Arkansas, USA	https://rruff.info/R100097

All locality data graciously provided by mindat.org

All age data...