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:
Danbury, Merrimack Co., New Hampshire, USA


mindat Locality ID: 23782
mindat URL: http://www.mindat.org/loc-23782.html

Tectonic Settings:

Total number of sublocalities beneath "Danbury, Merrimack Co., New Hampshire, USA": 13
Total number of bottom-level sublocalities: 13

Number of Child Localities: 13
Child Localities:
Bailey Mine (Bailey Mica Mine)
Brownell Prospect
Chisholm Mine (Chisholm Garnet Mine)
Danbury Mica Mine
Eastman Mine (Wild Meadows Mine)
Ford Garnet Mine (East Severance Hill Garnet Mine)
Howe Mine (Howe Mica Mine)
Jake Patten Mica Prospect
Pinnacle Mine
Roby Mine
Skyline Campground Mine No. 2
Stewart Hill Prospect (Stewart Hill Mine)
Tenney Mine (Tenney Mica Mine; Pickwick Mine; Pickwick Rise Mine)

Latitude: 43°31'32"N
Longitude: 71°53'43"W
Decimal Degree (lat, lon): 43.525555555556,-71.895277777778

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe 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.

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 B Be Ca F Fe H K Na O P Si U 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ApatiteAutuniteBerylClayFeldsparGarnetMeta-autuniteMicaNoneQuartz
Tourmaline

9 IMA Minerals at location:
Almandine  (*)Autunite  (*)Beryl  (*)Fluorapatite  (*)Meta-autunite  (*)
Microcline  (*)Muscovite  (*)Quartz  (*)Schorl  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)312242582,242583,242584,242585,242586,242587,242588,242589,242590,242591,242593,2425942353
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O12425851272
Beryl  (*)BerylBe3Al2Si6O187242583,242585,242586,242590,242591,242593,2425944286
Fluorapatite  (*)ApatiteCa5(PO4)3F12425932740
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O2242583,242585388
Microcline  (*)FeldsparK(AlSi3O8)10242582,242583,242585,242586,242588,242589,242590,242591,242593,2425944924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)213242582,242583,242584,242585,242586,242587,242588,242589,242590,242591,242592,242593,24259417380
Quartz  (*)QuartzSiO212242582,242583,242584,242585,242586,242587,242588,242589,242590,242591,242593,24259461156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)4242583,242586,242593,2425942705



No ages have been assigned to this locality yet.

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All locality data graciously provided by mindat.org

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