Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Kennebec Co., Maine, USA

Oldest recorded age at locality: 238
Youngest recorded age at locality: 238

mindat Locality ID: 29092
mindat URL: http://www.mindat.org/loc-29092.html

Tectonic Settings:

Total number of sublocalities beneath "Kennebec Co., Maine, USA": 40
Total number of bottom-level sublocalities: 34

Number of Child Localities: 29
Child Localities:
Albion
Augusta
Belgrade
Benton
Chelsea
China
Clinton
Farmingdale
Fayette
Gardiner
Hallowell
Litchfield
Manchester
Monmouth
Mount Vernon
Oakland
Pittston
Randolph
Readfield
Rome
Sidney
Vassalboro
Vienna
Waterville
Wayne
West Gardiner
Windsor
Winslow
Winthrop

Latitude: 44°23'36"N
Longitude: 69°46'30"W
Decimal Degree (lat, lon): 44.393333333333,-69.775

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.

Allanite	Amphibole	Apatite	Arsenopyrite	Astrophyllite	Beryl	Calcite	Cancrinite	Cancrinite-sodalite	Chalcopyrite
Clay	Clinozoisite	Copiapite	Corundum	Diaspore	Epidote	Feldspar	Fluorite	Melanterite	Mica
Natrolite	Nickeline	None	Not in a structural group	Olivine	Prehnite	Pyrite	Pyroxene	Quartz	Rocksalt
Rutile	Sodalite	Spinel	Staurolite	Titanite	Tourmaline	Tridymite	Zircon

Actinolite ()*	Aegirine ()*	Aegirine-augite ()*	Albite ()*	Allanite-(Ce) ()*
Annite ()*	Arsenopyrite ()*	Astrophyllite ()*	Augite ()*	Beryl ()*
Calcite ()*	Cancrinite ()*	Cassiterite ()*	Chalcopyrite ()*	Chrysoberyl ()*
Clinozoisite ()*	Copiapite ()*	Corundum ()*	Diaspore ()*	Fluorapatite ()*
Fluorite ()*	Galena ()*	Gibbsite ()*	Graphite ()*	Magnetite ()*
Melanterite ()*	Microcline ()*	Muscovite ()*	Natrolite ()*	Nepheline ()*
Prehnite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Riebeckite ()*
Schorl ()*	Sillimanite ()*	Sodalite ()*	Staurolite ()*	Titanite ()*
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 As B Be C Ca Ce Cl Cu F Fe H K Mg Na O P Pb S Si Sn Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allanite Amphibole Apatite Arsenopyrite Astrophyllite Beryl Calcite Cancrinite Cancrinite-sodalite Chalcopyrite
Clay Clinozoisite Copiapite Corundum Diaspore Epidote Feldspar Fluorite Melanterite Mica
Natrolite Nickeline None Not in a structural group Olivine Prehnite Pyrite Pyroxene Quartz Rocksalt
Rutile Sodalite Spinel Staurolite Titanite Tourmaline Tridymite Zircon

41 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# 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	217121	3419
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	238	238	1	217100	1022
Aegirine-augite ()*	Pyroxene	(Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆	238	238	1	217100	286
Albite ()*	Feldspar	Na(AlSi₃O₈)	238	238	3	217099,217100,217116	8803
Allanite-(Ce) ()*	Allanite Epidote	CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)	238	238	1	217099	706
Annite ()*	Mica Clay	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	238	238	1	217100	356
Arsenopyrite ()*	Arsenopyrite	FeAsS	238	238	2	217099,217119	9052
Astrophyllite ()*	Astrophyllite	K₂NaFe²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F	238	238	1	217100	161
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	238	238	2	217100,217116	2060
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			2	217119,217125	4286
Calcite ()*	Calcite	Ca(CO₃)			2	217119,217121	27770
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	238	238	3	217100,217103,217116	232
Cassiterite ()*	Rutile	SnO₂			1	217119	5171
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			1	217119	27198
Chrysoberyl ()*	Olivine	BeAl₂O₄	238	238	1	217099	321
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	238	238	1	217099	1025
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O			1	217124	382
Corundum ()*	Corundum	Al₂O₃	238	238	2	217099,217100	1797
Diaspore ()*	Diaspore	AlO(OH)	238	238	1	217100	481
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	238	238	2	217099,217100	2740
Fluorite ()*	Fluorite	CaF₂	238	238	2	217099,217119	9617
Galena ()*	Rocksalt	PbS			1	217119	24243
Gibbsite ()*	None	Al(OH)₃	238	238	1	217100	504
Graphite ()*	None	C	238	238	1	217098	2812
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	238	238	2	217100,217119	14899
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			1	217124	915
Microcline ()*	Feldspar	K(AlSi₃O₈)	238	238	1	217099	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	238	238	3	217099,217122,217123	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	238	238	1	217100	1236
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	238	238	4	217098,217100,217103,217116	884
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	217123	1898
Pyrite ()*	Pyrite	FeS₂	238	238	5	217087,217099,217119,217123,217124	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	217096	9056
Quartz ()*	Quartz	SiO₂			5	217087,217121,217122,217123,217125	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	238	238	2	217100,217116	375
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	238	238	1	217099	2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅			1	217121	1516
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl	238	238	2	217100,217116	444
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)			2	217122,217123	978
Titanite ()*	Titanite	CaTi(SiO₄)O	238	238	1	217099	4899
Zircon ()*	Zircon	Zr(SiO₄)	238	238	3	217099,217100,217116	5251

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	AREPS5_257-00003	238	238	238											31680	Litchfield, Kennebec Co., Maine, USA	Litchfield	Zartman (1977)	10.1146/annurev.ea.05.050177.001353	AREPS5_257

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...