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:
McMillan West Prospect, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA

Oldest recorded age at locality: 385
Youngest recorded age at locality: 288

mindat Locality ID: 129059
mindat URL: http://www.mindat.org/loc-129059.html

Tectonic Settings:

Total number of sublocalities beneath "McMillan West Prospect, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 36°2'40"N
Longitude: 83°48'21"W
Decimal Degree (lat, lon): 36.044444444444,-83.805833333333

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.

Calcite	None	Sphalerite

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: C O S Zn

Elements from minerals reported directly at this locality: C O S Zn

Structural Groups for minerals in this locality:
Calcite None Sphalerite

2 IMA Minerals at location:

Smithsonite ()*	Sphalerite ()*

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
Smithsonite ()*	Calcite	Zn(CO₃)	385	288	0		2473
Sphalerite ()*	Sphalerite	ZnS	385	288	0		21482

10 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Dating Method	Age Interpret	Sample Source	Sample Num	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
GCA57_417-00001	347	347	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	1	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00003	318	318	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	2	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00005	349	349	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	3	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00007	357	357	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	4	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00009	288	288	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	I17L	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00011	298	298	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	I17D	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00013	309	309	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	I23	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00015	329	329	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	I24-1	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00017	338	338	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	I24-2	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417
GCA57_417-00019	385	385	Rb-Sr	Apparent sphalerite fluid Age (Ma) calculated for leachate-sphalerite pairs (r and l)	sphalerite	I24-3	Yes	Sphalerite	128963	Immel Zinc Mine, Mascot-Jefferson City Zinc District, Knox Co., Tennessee, USA	Immel mine, East Tennessee	Nakai et al. (1993)	10.1016/0016-7037(93)90440-8	GCA57_417

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...