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:
Polhill Property, Louise Chromite Deposit (Turner Property; Polhill Property; Owens Properties; Chromite Deposits Near Louise Georgia; Troup County Chromite Georgia), Louise Chromite Belt, Troup Co., Georgia, USA

Oldest recorded age at locality: 460
Youngest recorded age at locality: 460

mindat Locality ID: 72033
mindat URL: http://www.mindat.org/loc-72033.html

Tectonic Settings:

Total number of sublocalities beneath "Polhill Property, Louise Chromite Deposit (Turner Property; Polhill Property; Owens Properties; Chromite Deposits Near Louise Georgia; Troup County Chromite Georgia), Louise Chromite Belt, Troup Co., Georgia, 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.

Clay	Corundum	None	Spinel	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 Cr Fe H Mg O Si

Elements from minerals reported directly at this locality: Al Cr Fe H Mg O Si

Structural Groups for minerals in this locality:
Clay Corundum None Spinel Talc

4 IMA Minerals at location:

Chromite ()*	Corundum ()*	Spinel ()*	Talc ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	460	460	3902
Corundum ()*	Corundum	Al₂O₃	460	460	1797
Spinel ()*	Spinel	MgAl₂O₄	460	460	1934
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	460	460	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
	podchrome-01112	460	460	Ordovician							Yes			Cr	70963	Louise Chromite Deposit (Turner Property; Polhill Property; Owens Properties; Chromite Deposits Near Louise Georgia; Troup County Chromite Georgia), Louise Chromite Belt, Troup Co., Georgia, USA	Louise	Moiser et al. (2012)		USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...