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:
Barkhamsted, Litchfield Co., Connecticut, USA

mindat Locality ID: 248927
mindat URL: http://www.mindat.org/loc-248927.html

Tectonic Settings:

Total number of sublocalities beneath "Barkhamsted, Litchfield Co., Connecticut, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Bill's Brook Dam (Saville Dam)
Corundum And Grossular Locality
Native American Soapstone Quarry
Pine Mountain
Tourmaline Locality
Unnamed Granite Quarry
Unspecified Construction Site

Latitude: 41°56'6"N
Longitude: 72°57'13"W
Decimal Degree (lat, lon): 41.935,-72.953611111111

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.

Amphibole	Calcite	Chlorite	Clay	Corundum	Garnet	None	Not in a structural group	Pyroxene	Quartz
Spinel	Staurolite	Talc	Tourmaline

Actinolite ()*	Almandine ()*	Calcite ()*	Clinochlore ()*	Corundum ()*
Diopside ()*	Graphite ()*	Grossular ()*	Kyanite ()*	Magnetite ()*
Quartz ()*	Schorl ()*	Sillimanite ()*	Staurolite ()*	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 B C Ca Fe H Mg Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Calcite Chlorite Clay Corundum Garnet None Not in a structural group Pyroxene Quartz
Spinel Staurolite Talc Tourmaline

15 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	1	198925	3419
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1	198924	2353
Calcite ()*	Calcite	Ca(CO₃)	1	198924	27770
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	1	198929	1756
Corundum ()*	Corundum	Al₂O₃	1	198924	1797
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	198924	4135
Graphite ()*	None	C	1	198924	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	1	198924	1544
Kyanite ()*	Not in a structural group	Al₂OSiO₄	2	198924,198926	1507
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2	198924,198926	14899
Quartz ()*	Quartz	SiO₂	3	198924,198927,198929	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	2	198927,198929	2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	198924	1516
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	1	198924	978
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	198925	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...