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:
Huelgoat, Finistère, Brittany, France

Oldest recorded age at locality: 293
Youngest recorded age at locality: 290

mindat Locality ID: 1685
mindat URL: http://www.mindat.org/loc-1685.html

Tectonic Settings:

Total number of sublocalities beneath "Huelgoat, Finistère, Brittany, France": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Kervoal
La Coudraie
Le Gouffre
Poullaba Vein

Latitude: 48°21'21"N
Longitude: 3°43'25"W
Decimal Degree (lat, lon): 48.355833333333,-3.7236111111111

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.

Adelite	Allargentum	Aluminite	Alunite	Amorphous	Andalusite	Apatite	Aragonite	Argyrodite	Baryte
Beryl	Bournonite	Calcite	Chalcopyrite	Cobaltite	Copper	Covellite	Cylindrite	Diaspore	Enargite
Feldspar	Gypsum	Halotrichite	Lepidocrocite	Linarite	Malachite	Marcasite	Meneghinite	Millerite	Nickeline
None	Not in a structural group	Perovskite	Polybasite	Pyrite	Quartz	Rocksalt	Rutile	Skutterudite	Sphalerite
Spinel	Stannite	Ullmannite	Wurtzite	Zinkenite

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: Ag Al As Au Br C Ca Cl Co Cu Fe H K Mg N Na Ni O P Pb S Sb Si Sn Zn

Elements from minerals reported directly at this locality: Al C Ca Co Cu Fe H N Na O P Pb S Si

Structural Groups for minerals in this locality:
Adelite Allargentum Aluminite Alunite Amorphous Andalusite Apatite Aragonite Argyrodite Baryte
Beryl Bournonite Calcite Chalcopyrite Cobaltite Copper Covellite Cylindrite Diaspore Enargite
Feldspar Gypsum Halotrichite Lepidocrocite Linarite Malachite Marcasite Meneghinite Millerite Nickeline
None Not in a structural group Perovskite Polybasite Pyrite Quartz Rocksalt Rutile Skutterudite Sphalerite
Spinel Stannite Ullmannite Wurtzite Zinkenite

57 IMA Minerals at location:

Albite ()*	Aluminite ()*	Andalusite ()*	Anglesite ()*	Austinite ()*
Azurite ()*	Bornite ()*	Bournonite ()*	Bromargyrite ()*	Calcite ()*
Canfieldite ()*	Cassiterite ()*	Cerussite ()*	Chalcopyrite ()*	Chlorargyrite ()*
Cobaltite ()*	Cordierite ()*	Covellite ()*	Diadochite ()*	Dyscrasite ()*
Enargite ()*	Franckeite ()*	Galena ()*	Goethite ()*	Gold ()*
Gypsum ()*	Halotrichite ()*	Jamesonite ()*	Jarosite ()*	Kësterite ()*
Laumontite ()*	Lepidocrocite ()*	Likasite ()*	Linarite ()*	Linnaeite ()*
Malachite ()*	Marcasite ()*	Meneghinite ()*	Meta-aluminite ()*	Millerite ()*
Plumbogummite ()*	Polybasite ()*	Pyrargyrite ()*	Pyrite ()*	Pyromorphite ()*
Pyrrhotite ()*	Quartz ()*	Rosièresite ()*	Semseyite ()*	Siderite ()*
Silver ()*	Skutterudite ()*	Smithsonite ()*	Sphalerite ()*	Stannite ()*
Ullmannite ()*	Zinkenite ()*

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)	293	290	0		8803
Aluminite ()*	Aluminite	Al₂(SO₄)(OH)₄·7H₂O	293	290	1	52797	78
Andalusite ()*	Andalusite	Al₂SiO₅	293	290	2	52795,52796	1310
Anglesite ()*	Baryte	Pb(SO₄)	293	290	1	52797	2734
Austinite ()*	Adelite	CaZn(AsO₄)(OH)	293	290	1	52797	71
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	293	290	1	52797	5509
Bornite ()*	None	Cu₅FeS₄	293	290	1	52797	5516
Bournonite ()*	Bournonite	CuPbSbS₃	293	290	1	52797	1089
Bromargyrite ()*	Rocksalt	AgBr	293	290	1	52797	227
Calcite ()*	Calcite	Ca(CO₃)	293	290	0		27770
Canfieldite ()*	Argyrodite	Ag₈SnS₆	293	290	1	52797	91
Cassiterite ()*	Rutile	SnO₂	293	290	1	52797	5171
Cerussite ()*	Aragonite	Pb(CO₃)	293	290	1	52797	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	293	290	2	52794,52797	27198
Chlorargyrite ()*	Rocksalt	AgCl	293	290	1	52797	1382
Cobaltite ()*	Cobaltite	CoAsS	293	290	1	52797	966
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	293	290	1	52796	1008
Covellite ()*	Covellite	CuS	293	290	1	52797	4165
Diadochite ()*	Amorphous	Fe³⁺₂(PO₄)(SO₄)(OH)·6H₂O	293	290	1	52797	81
Dyscrasite ()*	Allargentum	Ag_3+xSb_1-x (x ≈ 0.2)	293	290	1	52797	180
Enargite ()*	Enargite Wurtzite	Cu₃AsS₄	293	290	1	52797	910
Franckeite ()*	Cylindrite	Pb_21.7Sn_9.3Fe_4.0Sb_8.1S_56.9	293	290	1	52797	52
Galena ()*	Rocksalt	PbS	293	290	2	52794,52797	24243
Goethite ()*	Diaspore	FeO(OH)	293	290	0		7437
Gold ()*	Copper	Au	293	290	1	52797	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	293	290	0		6890
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	293	290	1	52797	409
Jamesonite ()*	None	Pb₄FeSb₆S₁₄	293	290	1	52794	784
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	293	290	1	52797	2228
Kësterite ()*	Stannite Sphalerite	Cu₂ZnSnS₄	293	290	1	52797	82
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	293	290	1	52797	1271
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	293	290	0		581
Likasite ()*	None	Cu₃(NO₃)(OH)₅·2H₂O	293	290	0		11
Linarite ()*	Linarite	CuPb(SO₄)(OH)₂	293	290	1	52797	987
Linnaeite ()*	Spinel	Co²⁺Co³⁺₂S₄	293	290	0		249
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	293	290	1	52797	12537
Marcasite ()*	Marcasite	FeS₂	293	290	1	52797	5674
Meneghinite ()*	Meneghinite	Pb₁₃CuSb₇S₂₄	293	290	1	52797	158
Meta-aluminite ()*	Aluminite	Al₂(SO₄)(OH)₄·5H₂O	293	290	0		6
Millerite ()*	Millerite	NiS	293	290	1	52797	1066
Plumbogummite ()*	Alunite	PbAl₃(PO₄)(PO₃OH)(OH)₆	293	290	1	52797	170
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]	293	290	1	52797	716
Pyrargyrite ()*	None	Ag₃SbS₃	293	290	1	52797	1425
Pyrite ()*	Pyrite	FeS₂	293	290	1	52797	39462
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	293	290	1	52797	1725
Pyrrhotite ()*	Nickeline	Fe₇S₈	293	290	1	52797	9056
Quartz ()*	Quartz	SiO₂	293	290	2	52794,52797	61156
Rosièresite ()*	None	[Pb,Cu,Al,PO₄,H₂O] (?)	0	0	0		2
Semseyite ()*	None	Pb₉Sb₈S₂₁	293	290	1	52797	165
Siderite ()*	Calcite	Fe(CO₃)	293	290	0		6417
Silver ()*	Copper	Ag	293	290	1	52797	5186
Skutterudite ()*	Skutterudite Perovskite	CoAs₃	293	290	1	52797	531
Smithsonite ()*	Calcite	Zn(CO₃)	293	290	1	52797	2473
Sphalerite ()*	Sphalerite	ZnS	293	290	2	52794,52797	21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	293	290	1	52797	668
Ullmannite ()*	Ullmannite	NiSbS	293	290	1	52797	293
Zinkenite ()*	Zinkenite	Pb₉Sb₂₂S₄₂	293	290	2	52794,52797	228

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Lucy_271	Granite in Brittany, part of Hereynian granite in the English Channel
Lucy_272	Granite in Brittany, part of Hereynian granite in the English Channel

2 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
	Lucy_271	290	290	290	K-Ar	Most reliable age for a Hereynian granite in the English Channel region is that of the Huelgoat granite in Brittany.									1685	Huelgoat, Finistère, Brittany, France	Huelgoat granite	Darnley et al. (1965)		MM34_159
	Lucy_272	293	293	293	Rb-Sr	Most reliable age for a Hereynian granite in the English Channel region is that of the Huelgoat granite in Brittany.									1685	Huelgoat, Finistère, Brittany, France	Huelgoat granite	Darnley et al. (1965)		MM34_159

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...