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:
St Agnes, Cornwall, England, UK

Oldest recorded age at locality: 291.8
Youngest recorded age at locality: 262

mindat Locality ID: 36331
mindat URL: http://www.mindat.org/loc-36331.html

Tectonic Settings:

Total number of sublocalities beneath "St Agnes, Cornwall, England, UK": 117
Total number of bottom-level sublocalities: 93

Number of Child Localities: 33
Child Localities:
Blackwater
Blue Hills Mine (incl. Wheal Dellick; Wheal Dragon; Wheal Glynn)
Bowling Green Mine
East Blue Hills Mine (incl. Wheal Budnock; Wheal Grass)
East Wheal Charlotte
East Wheal Ellen
East Wheal Music
Goonbell
Gooninis Mine
Great St Vincent Mine
Green Island
Hanover Cove (Vugga Hayle)
Mawla Lane End
Mithian
Mount Hawke
Porthtowan
Skinners Bottom
St Agnes Consols (Polberro Consols)
Trevaunance Cove
Victoria Mine
West Wheal Kitty Group
Wheal Barrow (?)
Wheal Bungay
Wheal Coates
Wheal Comfort
Wheal Devonshire
Wheal Kitty (Kitty And Penhalls United Mine; Incl. Goonlaze Mine; Wheal Osborne)
Wheal Luna
Wheal Ocean (North Blue Hills Mine)
Wheal Owla (Wheal Owles)
Wheal Prudence
Wheal Rose Village
Wheal Turton

Latitude: 50°18'12"N
Longitude: 5°12'3"W
Decimal Degree (lat, lon): 50.303333333333,-5.2008333333333

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.

Allophane	Alunite	Andalusite	Apatite	Arsenopyrite	Atacamite	Baryte	Bismutite	Bournonite	Brochantite
Calcite	Chalcanthite	Chalcoalumite	Chalcophyllite	Chalcopyrite	Chlorite	Clay	Cobaltite	Connellite	Copper
Corundum	Covellite	Cyanotrichite	Devilline	Diaspore	Feldspar	Fluorite	Löllingite	Malachite	Marcasite
Melanterite	Mica	Mixite	Nickeline	None	Not in a structural group	Perovskite	Pharmacosiderite	Phenakite	Pyrite
Quartz	Rocksalt	Rutile	Scheelite	Skutterudite	Sphalerite	Stannite	Stibnite	Sulphur	Tetrahedrite
Titanite	Topaz	Tourmaline	Vivianite

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 Bi C Ca Ce Cl Co Cu F Fe H K Mg Na O P Pb S Sb Si Sn Sr Ti W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Alunite Andalusite Apatite Arsenopyrite Atacamite Baryte Bismutite Bournonite Brochantite
Calcite Chalcanthite Chalcoalumite Chalcophyllite Chalcopyrite Chlorite Clay Cobaltite Connellite Copper
Corundum Covellite Cyanotrichite Devilline Diaspore Feldspar Fluorite Löllingite Malachite Marcasite
Melanterite Mica Mixite Nickeline None Not in a structural group Perovskite Pharmacosiderite Phenakite Pyrite
Quartz Rocksalt Rutile Scheelite Skutterudite Sphalerite Stannite Stibnite Sulphur Tetrahedrite
Titanite Topaz Tourmaline Vivianite

64 IMA Minerals at location:

Agardite-(Ce) ()*	Anatase ()*	Andalusite ()*	Anglesite ()*	Antlerite ()*
Arsenopyrite ()*	Atacamite ()*	Bismite ()*	Bismuthinite ()*	Bismutite ()*
Botallackite ()*	Bournonite ()*	Brochantite ()*	Carbonatecyanotrichite ()*	Cassiterite ()*
Cervantite ()*	Chalcanthite ()*	Chalcoalumite ()*	Chalcocite ()*	Chalcophyllite ()*
Chalcopyrite ()*	Chrysocolla ()*	Clinochlore ()*	Cobaltite ()*	Connellite ()*
Copper ()*	Covellite ()*	Cuprite ()*	Erythrite ()*	Fluorite ()*
Galena ()*	Goethite ()*	Hematite ()*	Langite ()*	Löllingite ()*
Malachite ()*	Marcasite ()*	Melanterite ()*	Muscovite ()*	Orthoclase ()*
Pharmacosiderite ()*	Phenakite ()*	Pyrite ()*	Pyromorphite ()*	Pyrrhotite ()*
Quartz ()*	Rosasite ()*	Scheelite ()*	Schorl ()*	Scorodite ()*
Serpierite ()*	Siderite ()*	Skutterudite ()*	Sphalerite ()*	Stannite ()*
Sulphur ()*	Svanbergite ()*	Tennantite-(Fe) ()*	Tenorite ()*	Thénardite ()*
Titanite ()*	Topaz ()*	Varlamoffite ()*	Vivianite ()*

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
Agardite-(Ce) ()*	Mixite	CeCu²⁺₆(AsO₄)₃(OH)₆·3H₂O			1	118442	43
Anatase ()*	Not in a structural group	TiO₂			7	118361,118388,118390,118398,118413,118445,118447	2162
Andalusite ()*	Andalusite	Al₂SiO₅			1	118442	1310
Anglesite ()*	Baryte	Pb(SO₄)			1	118400	2734
Antlerite ()*	Not in a structural group	Cu²⁺₃(SO₄)(OH)₄			1	118361	246
Arsenopyrite ()*	Arsenopyrite	FeAsS			5	118361,118392,118442,118445,118457	9052
Atacamite ()*	Atacamite	Cu₂Cl(OH)₃			1	118361	544
Bismite ()*	None	Bi₂O₃			2	118437,118442	214
Bismuthinite ()*	Stibnite	Bi₂S₃			1	118448	1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)			1	118442	716
Botallackite ()*	Atacamite	Cu₂Cl(OH)₃			1	118361	49
Bournonite ()*	Bournonite	CuPbSbS₃			1	118391	1089
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆			3	118361,118390,118438	1633
Carbonatecyanotrichite ()*	Cyanotrichite	Cu₄Al₂(CO₃)(OH)₁₂·2H₂O			1	118361	88
Cassiterite ()*	Rutile	SnO₂	291.8	262	53	118343,118345,118349,118360,118361,118364,118384,118385,118388,118390,118391,118396,118398,118399,118400,118401,118402,118404,118412,118413,118414,118416,118418,118419,118420,118421,118422,118423,118424,118425,118426,118427,118429,118430,118431,118433,118436,118437,118438,118439,118440,118441,118442,118444,118445,118447,118448,118449,118450,118451,118453,118456,118457	5171
Cervantite ()*	None	Sb³⁺Sb⁵⁺O₄			1	118427	352
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O			1	118361	925
Chalcoalumite ()*	Chalcoalumite	CuAl₄(SO₄)(OH)₁₂·3H₂O			2	118361,118390	91
Chalcocite ()*	None	Cu₂S			4	118361,118386,118403,118444	5707
Chalcophyllite ()*	Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄·36H₂O			1	118365	194
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			39	118350,118355,118371,118373,118375,118383,118386,118388,118389,118390,118392,118395,118398,118400,118401,118403,118404,118413,118414,118419,118421,118422,118423,118425,118427,118431,118433,118435,118437,118438,118439,118442,118444,118445,118447,118448,118449,118453,118457	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			1	118365	3531
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈			1	118413	1756
Cobaltite ()*	Cobaltite	CoAsS			1	118392	966
Connellite ()*	Connellite	Cu₃₆(SO₄)(OH)₆₂Cl₈·6H₂O			1	118438	295
Copper ()*	Copper	Cu			6	118365,118390,118403,118414,118421,118442	3846
Covellite ()*	Covellite	CuS			1	118427	4165
Cuprite ()*	Not in a structural group	Cu₂O			5	118365,118390,118403,118414,118442	2970
Erythrite ()*	Vivianite	Co₃(AsO₄)₂·8H₂O			1	118392	814
Fluorite ()*	Fluorite	CaF₂	291.8	262	12	118419,118420,118422,118423,118425,118427,118438,118439,118441,118444,118445,118447	9617
Galena ()*	Rocksalt	PbS			7	118371,118392,118398,118400,118431,118438,118439	24243
Goethite ()*	Diaspore	FeO(OH)			5	118388,118415,118419,118423,118442	7437
Hematite ()*	Corundum	Fe₂O₃			3	118423,118442,118443	14640
Langite ()*	None	Cu₄(SO₄)(OH)₆·2H₂O			1	118438	593
Löllingite ()*	Löllingite	FeAs₂			1	118392	762
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			4	118388,118390,118403,118445	12537
Marcasite ()*	Marcasite	FeS₂			1	118413	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			2	118413,118442	915
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			2	118413,118424	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			1	118442	2349
Pharmacosiderite ()*	Pharmacosiderite	KFe³⁺₄(AsO₄)₃(OH)₄·6-7H₂O			1	118365	428
Phenakite ()*	Phenakite	Be₂(SiO₄)			1	118445	326
Pyrite ()*	Pyrite	FeS₂			31	118350,118355,118371,118374,118383,118386,118389,118392,118395,118396,118401,118404,118413,118414,118419,118420,118421,118423,118431,118437,118438,118439,118442,118444,118445,118447,118448,118449,118453,118454,118457	39462
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl			1	118392	1725
Pyrrhotite ()*	Nickeline	Fe₇S₈			2	118427,118440	9056
Quartz ()*	Quartz	SiO₂			33	118350,118355,118371,118383,118386,118388,118389,118392,118395,118398,118400,118401,118404,118413,118414,118419,118420,118421,118422,118423,118424,118429,118435,118437,118438,118439,118442,118444,118445,118447,118448,118449,118453	61156
Rosasite ()*	Malachite	CuZn(CO₃)(OH)₂			1	118361	454
Scheelite ()*	Scheelite	Ca(WO₄)			1	118440	4894
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			4	118431,118435,118442,118448	2705
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O			2	118365,118403	1153
Serpierite ()*	Devilline	Ca(Cu,Zn)₄(SO₄)₂(OH)₆·3H₂O			1	118390	292
Siderite ()*	Calcite	Fe(CO₃)			8	118386,118388,118404,118423,118427,118433,118445,118447	6417
Skutterudite ()*	Skutterudite Perovskite	CoAs₃			2	118391,118392	531
Sphalerite ()*	Sphalerite	ZnS			20	118351,118371,118388,118390,118396,118398,118400,118404,118413,118419,118422,118423,118431,118437,118438,118440,118445,118447,118449,118453	21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄			4	118414,118437,118438,118439	668
Sulphur ()*	Sulphur	S			2	118390,118413	2045
Svanbergite ()*	Alunite	SrAl₃(SO₄)(PO₄)(OH)₆			1	118442	105
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃			1	118423	1803
Tenorite ()*	None	CuO			6	118350,118389,118390,118395,118442,118444	1101
Thénardite ()*	None	Na₂(SO₄)			1	118361	299
Titanite ()*	Titanite	CaTi(SiO₄)O			1	118445	4899
Topaz ()*	Topaz	Al₂SiO₄F₂			7	118361,118419,118421,118422,118423,118427,118445	1476
Varlamoffite ()*	Rutile	(Sn,Fe)(O,OH)₂			1	118437	56
Vivianite ()*	Vivianite	Fe²⁺₃(PO₄)₂·8H₂O			1	118427	636

13 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Lucy_070	289	279	284 ± 5	K-Ar		muscovite		Muscovite	191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Wheal Bungay	Halliday (1980)	10.2113/gsecongeo.75.5.752	EG75_752
Lucy_132a	289	279	284 ± 5	K/Ar	Previous K/Ar determination				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Wheal Bungay Mine	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_132h	283	274.2	278.6 ± 4.4	K/Ar	New K/Ar determination		197		191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Centre of Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_132i	291.8	282.8	287.3 ± 4.5	K/Ar	New K/Ar determination		197		191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Centre of Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_132k	275.9	266.9	271.4 ± 4.5	K/Ar	New K/Ar determination				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064	Arithmetic mean ± standard error of the mean for averaged of data for each sample except 141
Lucy_138e	278.9	270.1	274.5 ± 4.3	K/Ar	New K/Ar determination		206		191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138f	270.6	262	266.3 ± 4.3	K/Ar	New K/Ar determination		213		191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138g	276.1	267.5	271.8 ± 4.3	K/Ar	New K/Ar determination		214		191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138h	271.7	263.1	267.4 ± 4.3	K/Ar	New K/Ar determination		218		191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138i	279.1	270.3	274.7 ± 4.4	K/Ar	New K/Ar determination		221		191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138j	271.4	270.4	270.9 ± 1.8	K/Ar	New K/Ar determination				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064	Arithmetic mean of 5 samples
Lucy_144g	276.3	272.1	274.2 ± 2.1	K/Ar	New K/Ar ages of Kaolinized granite				191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Goonbarrow China Pit	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064	Arithmetic mean of all samples of Kaolinized Granite at Goonbarrow China Clay Pit omitting 265 sample age of 249.9 ± 4.0 which was judged as erroneous.
Lucy_224	283	273	278 ± 5	K-Ar	Age of St Agnes Granite	muscovite		Muscovite	191350	Wheal Bungay, St Agnes, Cornwall, England, UK	Wheal Bungay	Miller et al (1964)	10.1002/gj.3350040109	GJ4_105	New ages on the granites and derived rocks

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...