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:
Milan, Coos Co., New Hampshire, USA

Oldest recorded age at locality: 470
Youngest recorded age at locality: 470

mindat Locality ID: 24726
mindat URL: http://www.mindat.org/loc-24726.html

Tectonic Settings:

Total number of sublocalities beneath "Milan, Coos Co., New Hampshire, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Green Ledges Localities
Milan Mine (Nay-Fogg Mine; Copperville Mine)
Twitchell And Mason Mine

Latitude: 44°34'24"N
Longitude: 71°11'6"W
Decimal Degree (lat, lon): 44.573333333333,-71.185

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.

Chalcopyrite	Clay	Diaspore	Feldspar	Mica	None	Pyrite	Quartz	Rocksalt	Sphalerite
Topaz

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 Cu F Fe H K Na O Pb S Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Chalcopyrite Clay Diaspore Feldspar Mica None Pyrite Quartz Rocksalt Sphalerite
Topaz

12 IMA Minerals at location:

Albite ()*	Bornite ()*	Chalcocite ()*	Chalcopyrite ()*	Galena ()*
Goethite ()*	Microcline ()*	Muscovite ()*	Pyrite ()*	Quartz ()*
Sphalerite ()*	Topaz ()*

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
Albite ()*	Feldspar	Na(AlSi₃O₈)			1	242068	8803
Bornite ()*	None	Cu₅FeS₄	470	470	1	242069	5516
Chalcocite ()*	None	Cu₂S	470	470	1	242069	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	470	470	2	242069,242070	27198
Galena ()*	Rocksalt	PbS	470	470	1	242069	24243
Goethite ()*	Diaspore	FeO(OH)	470	470	1	242069	7437
Microcline ()*	Feldspar	K(AlSi₃O₈)			1	242068	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	470	470	1	242069	17380
Pyrite ()*	Pyrite	FeS₂	470	470	2	242069,242070	39462
Quartz ()*	Quartz	SiO₂			1	242068	61156
Sphalerite ()*	Sphalerite	ZnS	470	470	1	242069	21482
Topaz ()*	Topaz	Al₂SiO₄F₂			1	242068	1476

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
	vms-01066	470	470	Ordovician										S	6001	Milan Mine (Nay-Fogg Mine; Copperville Mine), Milan, Coos Co., New Hampshire, USA	Milan	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...