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:
Madison Co., Georgia, USA

Oldest recorded age at locality: 361
Youngest recorded age at locality: 339

mindat Locality ID: 66852
mindat URL: http://www.mindat.org/loc-66852.html

Tectonic Settings:

Total number of sublocalities beneath "Madison Co., Georgia, USA": 9
Total number of bottom-level sublocalities: 7

Number of Child Localities: 6
Child Localities:
Comer
Holley Creek
Ridgeway Placer (King; Parham; Carrington Placers)
Royalty Blue Quarry (Carlton Quarry)
Royston
Smith Placer (O. Threlkeld; J. Threlkeld; Webb Placers)

Latitude: 34°6'23"N
Longitude: 83°3'1"W
Decimal Degree (lat, lon): 34.106388888889,-83.050277777778

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.

Beryl	Clay	Copper	Mica	None	Not in a structural group	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 Au Be C H K O Si

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

Structural Groups for minerals in this locality:
Beryl Clay Copper Mica None Not in a structural group Quartz

6 IMA Minerals at location:

Beryl ()*	Gold ()*	Graphite ()*	Muscovite ()*	Quartz ()*
Sillimanite ()*

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
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	361	339	0		4286
Gold ()*	Copper	Au			2	202466,202471	30554
Graphite ()*	None	C			2	202469,202470	2812
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	361	339	0		17380
Quartz ()*	Quartz	SiO₂	361	339	0		61156
Sillimanite ()*	Not in a structural group	Al₂SiO₅			3	202463,202464,202465	1516

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
	USGS-Rb-Sr-04428	361	339	350±11	Rb-Sr	maximum age of intrusion		whole rock							71146	Royalty Blue Quarry (Carlton Quarry), Madison Co., Georgia, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...