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:
Chatham, Carroll Co., New Hampshire, USA

Oldest recorded age at locality: 171
Youngest recorded age at locality: 171

mindat Locality ID: 15778
mindat URL: http://www.mindat.org/loc-15778.html

Tectonic Settings:

Total number of sublocalities beneath "Chatham, Carroll Co., New Hampshire, USA": 8
Total number of bottom-level sublocalities: 8

Number of Child Localities: 8
Child Localities:
Charles Brook Locality
Chatham "Gold" Mine (Old "Gold" Mine)
Langdon Falls Locality
Millard Chandler Mine (Chandler Mine; North Star Mine)
Slope Mountain Locality
South Baldface Mountain Localities
South Baldface Mountain Phenakite Locality (Charles Ravine Locality)
Watson Brook Locality

Latitude: 44°12'34"N
Longitude: 71°3'39"W
Decimal Degree (lat, lon): 44.209444444444,-71.060833333333

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.

Apatite	Beryl	Clay	Feldspar	Fluorite	Garnet	Kaolinite	Löllingite	Mica	None
Not in a structural group	Phenakite	Quartz	Rutile	Topaz

Albite ()*	Almandine ()*	Bertrandite ()*	Beryl ()*	Cassiterite ()*
Fluorapatite ()*	Fluorite ()*	Kaolinite ()*	Löllingite ()*	Microcline ()*
Muscovite ()*	Phenakite ()*	Quartz ()*	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 As Be Ca F Fe H K Na O P Si Sn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Apatite Beryl Clay Feldspar Fluorite Garnet Kaolinite Löllingite Mica None
Not in a structural group Phenakite Quartz Rutile Topaz

14 IMA Minerals at location:

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)	171	171	2	241819,241821	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃			1	241819	2353
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂			1	241819	606
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			2	241816,241819	4286
Cassiterite ()*	Rutile	SnO₂	171	171	2	241821,241822	5171
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	241819	2740
Fluorite ()*	Fluorite	CaF₂	171	171	3	241820,241821,241822	9617
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	171	171	1	241821	5591
Löllingite ()*	Löllingite	FeAs₂			1	241819	762
Microcline ()*	Feldspar	K(AlSi₃O₈)	171	171	5	241816,241819,241820,241821,241822	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	241819	17380
Phenakite ()*	Phenakite	Be₂(SiO₄)	171	171	2	241821,241822	326
Quartz ()*	Quartz	SiO₂	171	171	7	241816,241818,241819,241820,241821,241822,241823	61156
Topaz ()*	Topaz	Al₂SiO₄F₂	171	171	2	241821,241822	1476

2 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
	AREPS5_257-00013	171	171	171											8204	South Baldface Mountain Localities, Chatham, Carroll Co., New Hampshire, USA	Baldface	Zartman (1977)	10.1146/annurev.ea.05.050177.001353	AREPS5_257
	AREPS5_257-00033	171	171	171											6092	South Baldface Mountain Phenakite Locality (Charles Ravine Locality), Chatham, Carroll Co., New Hampshire, USA	Baldface	Zartman (1977)	10.1146/annurev.ea.05.050177.001353	AREPS5_257

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...