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:
Somerset Co., Maine, USA

Oldest recorded age at locality: 500
Youngest recorded age at locality: 443

mindat Locality ID: 24150
mindat URL: http://www.mindat.org/loc-24150.html

Tectonic Settings:

Total number of sublocalities beneath "Somerset Co., Maine, USA": 136
Total number of bottom-level sublocalities: 124

Number of Child Localities: 116
Child Localities:
Alder Brook
Anson
Appleton
Athens
Attean
Bald Mountain
Big 6
Big Ten
Big W
Bigelow
Bingham
Blake Gore
Bowtown
Bradstreet
Brassua
Brighton
Cambridge
Canaan
Caratunk
Carrying Place
Carrying Place Town
Chase Stream
Comstock
Concord
Cornville
Dead River
Dennistown
Dole Brook
East Moxie
Elm Stream
Embden
Fairfield
Flagstaff
Forsyth
Hammond
Harmony
Hartland
Haynestown
Highland
Hobbstown
Holeb
Indian Stream
Jackman
Johnson Mountain
King And Bartlett
Lexington
Little W
Long Pond
Lower Enchanted
Madison
Mayfield
Mercer
Misery
Moose River
Moscow
Moxie Gore
New Portland
Norridgewock
Palmyra
Parlin Pond
Parlin Pond Township
Pierce Pond
Pittsfield
Pittston Academy Grant
Pleasant Ridge
Plymouth
Prentiss
Rayton
Ripley
Rockwood Strip
Russell Pond
Saint Albans
Saint John
Sandbar Tract
Sandwich Academy Grant
Sandy Bay
Sapling
Sapling Township
Seboomook
Skowhegan
Smithfield
Soldiertown
Solon
Spring Lake
Squaretown
Starks
T10 R16 WELS
T11 R17 WELS
T3 R4 BKP WKP
T3 R5 BKP WKR
T4 R5 NBKP
T5 R17 WELS
T5 R18 WELS
T5 R19 WELS
T5 R20 WELS
T5 R6 BKP WKR
T5 R7 BKP WKR
T6 R17 WELS
T6 R18 WELS
T7 R16 WELS
T7 R17 WELS
T7 R18 WELS
T7 R19 WELS
T8 R16 WELS
T8 R17 WELS
T8 R18 WELS
T8 R19 WELS
T9 R16 WELS
T9 R17 WELS
T9 R18 WELS
Taunton And Raynham
The Forks
Tomhegan
Upper Enchanted
West Forks
West Middlesex Canal Grant

Latitude: 45°20'28"N
Longitude: 70°11'52"W
Decimal Degree (lat, lon): 45.341111111111,-70.197777777778

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	Arsenopyrite	Beryl	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Diaspore	Epidote
Feldspar	Garnet	Kaolinite	Marcasite	Mica	Molybdenite	Nickeline	None	Prehnite	Pumpellyite
Pyrite	Pyroxene	Quartz	Ramsdellite	Rocksalt	Sphalerite	Spinel	Stannite	Titanite	Vesuvianite
Wollastonite

Albite ()*	Arsenopyrite ()*	Barroisite ()*	Birnessite ()*	Bornite ()*
Calcite ()*	Chalcocite ()*	Chalcopyrite ()*	Cordierite ()*	Diopside ()*
Epidote ()*	Ferro-pargasite ()*	Galena ()*	Goethite ()*	Gold ()*
Grossular ()*	Kaolinite ()*	Magnetite ()*	Marcasite ()*	Microcline ()*
Molybdenite ()*	Muscovite ()*	Nsutite ()*	Pargasite ()*	Prehnite ()*
Pumpellyite-(Fe²⁺) ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Sphalerite ()*
Stannite ()*	Titanite ()*	Vesuvianite ()*	Wollastonite ()*

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 Au C Ca Cu F Fe H K Mg Mn Mo Na O Pb S Si Sn Ti Zn

Elements from minerals reported directly at this locality: Au Ca H K Mn Na O

Structural Groups for minerals in this locality:
Amphibole Arsenopyrite Beryl Calcite Chalcopyrite Clay Clinozoisite Copper Diaspore Epidote
Feldspar Garnet Kaolinite Marcasite Mica Molybdenite Nickeline None Prehnite Pumpellyite
Pyrite Pyroxene Quartz Ramsdellite Rocksalt Sphalerite Spinel Stannite Titanite Vesuvianite
Wollastonite

34 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
Albite ()*	Feldspar	Na(AlSi₃O₈)			1	218048	8803
Arsenopyrite ()*	Arsenopyrite	FeAsS			2	217942,217967	9052
Barroisite ()*	Amphibole	(NaCa)(Mg₃Al₂)(Si₇Al)O₂₂(OH)₂			1	218033	49
Birnessite ()*	None	(Na,Ca,K)_0.6(Mn⁴⁺,Mn³⁺)₂O₄·1.5H₂O	500	443	0		178
Bornite ()*	None	Cu₅FeS₄			1	217967	5516
Calcite ()*	Calcite	Ca(CO₃)			2	217977,218048	27770
Chalcocite ()*	None	Cu₂S	443	443	1	217956	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	443	443	3	217946,217956,217967	27198
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈			1	218033	1008
Diopside ()*	Pyroxene	CaMgSi₂O₆			1	217977	4135
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	443	443	2	217946,217956	8173
Ferro-pargasite ()*	Amphibole	NaCa₂(Fe²⁺₄Al)(Si₆Al₂)O₂₂(OH)₂			1	218034	54
Galena ()*	Rocksalt	PbS			3	217967,218020,218027	24243
Goethite ()*	Diaspore	FeO(OH)			1	217942	7437
Gold ()*	Copper	Au	500	443	0		30554
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			1	217977	1544
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	443	443	1	217956	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	217977	14899
Marcasite ()*	Marcasite	FeS₂			1	218037	5674
Microcline ()*	Feldspar	K(AlSi₃O₈)	500	500	2	217967,217994	4924
Molybdenite ()*	Molybdenite	MoS₂	443	443	2	217946,217956	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	500	443	4	217946,217956,217967,217994	17380
Nsutite ()*	Ramsdellite	Mn²⁺_xMn⁴⁺_1-xO_2-2x(OH)_2x			1	218007	121
Pargasite ()*	Amphibole	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂			1	218033	313
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	218048	1898
Pumpellyite-(Fe²⁺) ()*	Pumpellyite	Ca₂Fe²⁺Al₂(Si₂O₇)(SiO₄)(OH,O)₂·H₂O			1	218033	30
Pyrite ()*	Pyrite	FeS₂	500	443	6	217942,217946,217956,217967,217994,218048	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	217967	9056
Quartz ()*	Quartz	SiO₂	500	443	8	217942,217956,217967,217994,218020,218027,218037,218048	61156
Sphalerite ()*	Sphalerite	ZnS	443	443	1	217956	21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	443	443	2	217955,217956	668
Titanite ()*	Titanite	CaTi(SiO₄)O			1	217977	4899
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			1	217977	1395
Wollastonite ()*	Wollastonite	CaSiO₃			1	217977	1247

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	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 ID
PorphCu-00022	443	443	443	Chalcopyrite, Epidote, Molybdenite, Pyrite	Cu	7377	Sally Mountain Prospect, Attean, Somerset Co., Maine, USA	Sally Mountain	Singer et al. (2008)	USGSOFR2008_1155
PorphCu-00023	443	443	443	Chalcocite, Chalcopyrite, Epidote, Kaolinite, Molybdenite, Pyrite, Sphalerite, Stannite	Cu	7378	Catheart Mountain Locality, Bradstreet, Somerset Co., Maine, USA	Catheart Mt.	Singer et al. (2008)	USGSOFR2008_1155
vms-01052	500	500	Late Cambrian-Early Ordovician		S	7376	Alder Pond Locality, Lower Enchanted, Somerset Co., Maine, USA	Alder Pond	Moiser et al. (2009)	USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...