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:
Keene, Cheshire Co., New Hampshire, USA

mindat Locality ID: 9406
mindat URL: http://www.mindat.org/loc-9406.html

Tectonic Settings:

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

Number of Child Localities: 8
Child Localities:
Chesterfield Hill
Fletcher Quarry
Granite State Mine
Keene Granite Quarry
Keene Soapstone Quarry
O'Neil Quarry (Daniel E. O'Neil Quarry)
Rhodonite Locality
West Hill Graphite Mine

Latitude: 42°56'1"N
Longitude: 72°16'41"W
Decimal Degree (lat, lon): 42.933611111111,-72.278055555556

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.

Beryl	Chalcopyrite	Clay	Clinozoisite	Corundum	Epidote	Feldspar	Garnet	Mica	None
Not in a structural group	Pyrite	Quartz	Rhodonite	Rocksalt	Talc

Almandine ()*	Beryl ()*	Chalcopyrite ()*	Epidote ()*	Galena ()*
Graphite ()*	Grossular ()*	Ilmenite ()*	Kyanite ()*	Microcline ()*
Muscovite ()*	Pyrite ()*	Quartz ()*	Rhodonite ()*	Sillimanite ()*
Talc ()*

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 Be C Ca Cu Fe H K Mg Mn O Pb S Si Ti

Elements from minerals reported directly at this locality: Al Ca Fe H O Si Ti

Structural Groups for minerals in this locality:
Beryl Chalcopyrite Clay Clinozoisite Corundum Epidote Feldspar Garnet Mica None
Not in a structural group Pyrite Quartz Rhodonite Rocksalt Talc

16 IMA Minerals at location:

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	3	241960,241962,241964	2353
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	2	241962,241964	4286
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	241961	27198
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	0		8173
Galena ()*	Rocksalt	PbS	1	241961	24243
Graphite ()*	None	C	1	241966	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	0		1544
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	0		5433
Kyanite ()*	Not in a structural group	Al₂OSiO₄	0		1507
Microcline ()*	Feldspar	K(AlSi₃O₈)	3	241960,241962,241964	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	4	241960,241961,241962,241964	17380
Pyrite ()*	Pyrite	FeS₂	1	241961	39462
Quartz ()*	Quartz	SiO₂	7	241959,241960,241961,241962,241964,241965,241966	61156
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	1	241965	969
Sillimanite ()*	Not in a structural group	Al₂SiO₅	0		1516
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	241963	3337

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...