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:
Gilsum, Cheshire Co., New Hampshire, USA

mindat Locality ID: 17363
mindat URL: http://www.mindat.org/loc-17363.html

Tectonic Settings:

Total number of sublocalities beneath "Gilsum, Cheshire Co., New Hampshire, USA": 12
Total number of bottom-level sublocalities: 12

Number of Child Localities: 12
Child Localities:
Conners Quarry
Fletcher Quarry
High White Quarry
Isham Quarry (Low White Quarry)
Keene Mica Products Mine
Kirk No. 1 Quarry (Bingham Hill Quarry)
Kirk No. 2 Quarry (Kirk No. 2 Mica Mine; Blake Quarry; Blake Mine)
Kirk No. 3 Quarry
Nichols Quarry
Pomlow Quarry
Surry Mountain Quarry
White Quarry (Jehial White Quarry)

Latitude: 43°3'7"N
Longitude: 72°16'23"W
Decimal Degree (lat, lon): 43.051944444444,-72.273055555556

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	Garnet	Mica	None	Not in a structural group	Pyroxene	Quartz
Tourmaline

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 Li Na O P Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Apatite Beryl Clay Feldspar Garnet Mica None Not in a structural group Pyroxene Quartz
Tourmaline

9 IMA Minerals at location:

Almandine ()*	Beryl ()*	Fluorapatite ()*	Microcline ()*	Muscovite ()*
Quartz ()*	Schorl ()*	Sillimanite ()*	Spodumene ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	11	241937,241938,241939,241940,241941,241942,241943,241945,241946,241947,241948	2353
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	5	241942,241943,241944,241945,241948	4286
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	5	241942,241943,241944,241945,241948	2740
Microcline ()*	Feldspar	K(AlSi₃O₈)	11	241937,241938,241939,241940,241941,241942,241943,241945,241946,241947,241948	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	11	241937,241938,241939,241940,241941,241942,241943,241945,241946,241947,241948	17380
Quartz ()*	Quartz	SiO₂	12	241937,241938,241939,241940,241941,241942,241943,241944,241945,241946,241947,241948	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	11	241937,241938,241939,241940,241941,241942,241943,241944,241945,241946,241948	2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅	2	241943,241945	1516
Spodumene ()*	Pyroxene	LiAlSi₂O₆	1	241946	688

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...