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:
Thomaston Dam Railroad Cut, Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA

mindat Locality ID: 4525
mindat URL: http://www.mindat.org/loc-4525.html

Tectonic Settings:

Total number of sublocalities beneath "Thomaston Dam Railroad Cut, Thomaston Dam, Thomaston, Litchfield Co., Connecticut, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 41°41'50"N
Longitude: 73°4'5"W
Decimal Degree (lat, lon): 41.697222222222,-73.068055555556

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	Aragonite	Axinite	Baryte	Brookite	Calcite	Chalcopyrite	Clay
Clinozoisite	Copiapite	Corundum	Diaspore	Epidote	Feldspar	Fluorite	Garnet	Harmotome	Heulandite
Melanterite	Mica	Nickeline	None	Not in a structural group	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile
Scheelite	Sphalerite	Spinel	Staurolite	Stilbite	Titanite	Tourmaline	Zircon

Actinolite ()*	Albite ()*	Almandine ()*	Anatase ()*	Annite ()*
Axinite-(Fe) ()*	Baryte ()*	Brookite ()*	Calcite ()*	Cerussite ()*
Chalcopyrite ()*	Clinozoisite ()*	Copiapite ()*	Diopside ()*	Epidote ()*
Fluorapatite ()*	Fluorite ()*	Galena ()*	Goethite ()*	Graphite ()*
Grossular ()*	Harmotome ()*	Hemimorphite ()*	Heulandite-Ca ()*	Hydrozincite ()*
Ilmenite ()*	Kyanite ()*	Laumontite ()*	Magnetite ()*	Melanterite ()*
Microcline ()*	Muscovite ()*	Opal ()*	Pyrite ()*	Pyromorphite ()*
Pyrrhotite ()*	Quartz ()*	Rutile ()*	Schorl ()*	Sillimanite ()*
Sphalerite ()*	Staurolite ()*	Stilbite-Ca ()*	Titanite ()*	Wulfenite ()*
Zircon ()*

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 Ba C Ca Cl Cu F Fe H K Mg Mo Na O P Pb S Si Ti Zn Zr

Elements from minerals reported directly at this locality: Al B Ba C Ca Cl Cu F Fe H K Mg Mo Na O P Pb S Si Ti Zn Zr

Structural Groups for minerals in this locality:
Amorphous Amphibole Apatite Aragonite Axinite Baryte Brookite Calcite Chalcopyrite Clay
Clinozoisite Copiapite Corundum Diaspore Epidote Feldspar Fluorite Garnet Harmotome Heulandite
Melanterite Mica Nickeline None Not in a structural group Pyrite Pyroxene Quartz Rocksalt Rutile
Scheelite Sphalerite Spinel Staurolite Stilbite Titanite Tourmaline Zircon

46 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2353
Anatase ()*	Not in a structural group	TiO₂	2162
Annite ()*	Mica Clay	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	356
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	260
Baryte ()*	Baryte	Ba(SO₄)	11547
Brookite ()*	Brookite	TiO₂	700
Calcite ()*	Calcite	Ca(CO₃)	27770
Cerussite ()*	Aragonite	Pb(CO₃)	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	27198
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1025
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	382
Diopside ()*	Pyroxene	CaMgSi₂O₆	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	2740
Fluorite ()*	Fluorite	CaF₂	9617
Galena ()*	Rocksalt	PbS	24243
Goethite ()*	Diaspore	FeO(OH)	7437
Graphite ()*	None	C	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	1544
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O	290
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	1689
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	246
Hydrozincite ()*	None	Zn₅(CO₃)₂(OH)₆	1066
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	5433
Kyanite ()*	Not in a structural group	Al₂OSiO₄	1507
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1271
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	14899
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	915
Microcline ()*	Feldspar	K(AlSi₃O₈)	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	17380
Opal ()*	Amorphous	SiO₂·nH₂O	2994
Pyrite ()*	Pyrite	FeS₂	39462
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	1725
Pyrrhotite ()*	Nickeline	Fe₇S₈	9056
Quartz ()*	Quartz	SiO₂	61156
Rutile ()*	Rutile	TiO₂	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1516
Sphalerite ()*	Sphalerite	ZnS	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	978
Stilbite-Ca ()*	Stilbite	NaCa₄(Si₂₇Al₉)O₇₂·28H₂O	268
Titanite ()*	Titanite	CaTi(SiO₄)O	4899
Wulfenite ()*	Scheelite	PbMoO₄	1655
Zircon ()*	Zircon	Zr(SiO₄)	5251

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...