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:
Merrimack, Hillsborough Co., New Hampshire, USA

mindat Locality ID: 32497
mindat URL: http://www.mindat.org/loc-32497.html

Tectonic Settings:

Total number of sublocalities beneath "Merrimack, Hillsborough Co., New Hampshire, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Audley Quarry
Route 101A Construction Site

Latitude: 42°48'15"N
Longitude: 71°32'59"W
Decimal Degree (lat, lon): 42.804166666667,-71.549722222222

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.

Amorphous	Amphibole	Apatite	Arsenopyrite	Brookite	Calcite	Chlorite	Clay	Feldspar	Garnet
None	Not in a structural group	Prehnite	Pyrite	Pyroxene	Quartz	Rutile	Titanite	Tourmaline

Actinolite ()*	Albite ()*	Almandine ()*	Anatase ()*	Arsenopyrite ()*
Brookite ()*	Calcite ()*	Clinochlore ()*	Diopside ()*	Dolomite ()*
Fluorapatite ()*	Graphite ()*	Opal ()*	Prehnite ()*	Pyrite ()*
Quartz ()*	Rutile ()*	Schorl ()*	Sillimanite ()*	Titanite ()*

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 B C Ca F Fe H Mg Na O P S Si Ti

Elements from minerals reported directly at this locality: Al As B C Ca Fe H Mg Na O S Si Ti

Structural Groups for minerals in this locality:
Amorphous Amphibole Apatite Arsenopyrite Brookite Calcite Chlorite Clay Feldspar Garnet
None Not in a structural group Prehnite Pyrite Pyroxene Quartz Rutile Titanite Tourmaline

20 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	0		3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	0		8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1	242522	2353
Anatase ()*	Not in a structural group	TiO₂	2	242521,242522	2162
Arsenopyrite ()*	Arsenopyrite	FeAsS	0		9052
Brookite ()*	Brookite	TiO₂	2	242521,242522	700
Calcite ()*	Calcite	Ca(CO₃)	2	242521,242522	27770
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	0		1756
Diopside ()*	Pyroxene	CaMgSi₂O₆	0		4135
Dolomite ()*	None	CaMg(CO₃)₂	0		9895
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	242522	2740
Graphite ()*	None	C	1	242522	2812
Opal ()*	Amorphous	SiO₂·nH₂O	1	242522	2994
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	0		1898
Pyrite ()*	Pyrite	FeS₂	2	242521,242522	39462
Quartz ()*	Quartz	SiO₂	2	242521,242522	61156
Rutile ()*	Rutile	TiO₂	0		5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	0		2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅	0		1516
Titanite ()*	Titanite	CaTi(SiO₄)O	1	242522	4899

No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

All age data...