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 Just, Cornwall, England, UK

Oldest recorded age at locality: 399
Youngest recorded age at locality: 45

mindat Locality ID: 1265
mindat URL: http://www.mindat.org/loc-1265.html

Tectonic Settings:

Total number of sublocalities beneath "St Just, Cornwall, England, UK": 100
Total number of bottom-level sublocalities: 75

Number of Child Localities: 21
Child Localities:
Balleswidden Mine
Bartinney Downs
Botallack
Cape Cornwall
Carallack
Carn Bosavern
Carn Gloose
Cot Valley
Dowran
East Botallack Mine Sett (West Wheal Metal; Wheal Fortune)
Hendra
Kenidjack Cliff
Kenidjack Valley
Leswidden China Clay Works
Nanquidno
New Balleswidden Mine
Pendeen
St Just Amalgamated Mines (incl. Wheal Penzance)
Tregeseal Valley
Trewellard
Wheal Cunning

Latitude: 50°7'27"N
Longitude: 5°40'46"W
Decimal Degree (lat, lon): 50.124166666667,-5.6794444444444

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	Allophane	Alunite	Amorphous	Amphibole	Andalusite	Apatite	Aragonite	Arsenic	Arsenopyrite
Atacamite	Autunite	Axinite	Baryte	Beryl	Bismutite	Brochantite	Calcite	Cancrinite-sodalite	Chalcanthite
Chalcophyllite	Chalcopyrite	Chlorite	Clay	Clinozoisite	Cobaltite	Compreignacite	Connellite	Copper	Corundum
Covellite	Cyanotrichite	Devilline	Diaspore	Digenite	Epidote	Epsomite	Feldspar	Fluorite	Garnet
Gypsum	Heulandite	Hydrotalcite	Johannite	Kaolinite	Lepidocrocite	Malachite	Marcasite	Melanterite	Metavoltine
Mica	Mixite	Natroautunite	Natrolite	Nickeline	None	Not in a structural group	Perovskite	Pharmacosiderite	Phenakite
Phosphuranylite	Prehnite	Pyrite	Pyroxene	Quartz	Rocksalt	Roselite	Rutile	Scheelite	Skutterudite
Smectite-vermiculite	Sodalite	Sphalerite	Spinel	Stannite	Stibnite	Talc	Tetrahedrite	Titanite	Topaz
Tourmaline	Vesuvianite	Vivianite	Volborthite	Wagnerite	Woodwardite	Wölsendorfite	Zippeite	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: Ag Al As Au B Ba Be Bi C Ca Ce Cl Co Cu F Fe H In K Mg Mn N Na Ni O P Pb S Sb Se Si Sn Sr Ti U V W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allanite Allophane Alunite Amorphous Amphibole Andalusite Apatite Aragonite Arsenic Arsenopyrite
Atacamite Autunite Axinite Baryte Beryl Bismutite Brochantite Calcite Cancrinite-sodalite Chalcanthite
Chalcophyllite Chalcopyrite Chlorite Clay Clinozoisite Cobaltite Compreignacite Connellite Copper Corundum
Covellite Cyanotrichite Devilline Diaspore Digenite Epidote Epsomite Feldspar Fluorite Garnet
Gypsum Heulandite Hydrotalcite Johannite Kaolinite Lepidocrocite Malachite Marcasite Melanterite Metavoltine
Mica Mixite Natroautunite Natrolite Nickeline None Not in a structural group Perovskite Pharmacosiderite Phenakite
Phosphuranylite Prehnite Pyrite Pyroxene Quartz Rocksalt Roselite Rutile Scheelite Skutterudite
Smectite-vermiculite Sodalite Sphalerite Spinel Stannite Stibnite Talc Tetrahedrite Titanite Topaz
Tourmaline Vesuvianite Vivianite Volborthite Wagnerite Woodwardite Wölsendorfite Zippeite Zircon

176 IMA Minerals at location:

Actinolite ()*	Albite ()*	Allanite-(Ce) ()*	Allophane ()*	Almandine ()*
Andersonite ()*	Andradite ()*	Anthophyllite ()*	Antimony ()*	Antlerite ()*
Aragonite ()*	Arsenic ()*	Arsenogoyazite ()*	Arsenopyrite ()*	Asbolane ()*
Atacamite ()*	Augite ()*	Autunite ()*	Axinite-(Fe) ()*	Azurite ()*
Baryte ()*	Becquerelite ()*	Beryl ()*	Bismite ()*	Bismuth ()*
Bismuthinite ()*	Bismutite ()*	Boltwoodite ()*	Bornite ()*	Botallackite ()*
Brochantite ()*	Brushite ()*	Buttgenbachite ()*	Calcite ()*	Cassiterite ()*
Cerussite ()*	Chalcanthite ()*	Chalcocite ()*	Chalcomenite ()*	Chalcophyllite ()*
Chalcopyrite ()*	Chamosite ()*	Chlorargyrite ()*	Chrysocolla ()*	Clinoatacamite ()*
Clinoclase ()*	Clinoptilolite-Ca ()*	Cobaltite ()*	Coffinite ()*	Compreignacite ()*
Connellite ()*	Copper ()*	Cordierite ()*	Cornubite ()*	Cornwallite ()*
Corundum ()*	Covellite ()*	Cumengeite ()*	Cummingtonite ()*	Cuprite ()*
Cuprosklodowskite ()*	Cyanotrichite ()*	Danalite ()*	Devilline ()*	Dewindtite ()*
Diaspore ()*	Digenite ()*	Diopside ()*	Djurleite ()*	Dolomite ()*
Dravite ()*	Epidote ()*	Erythrite ()*	Ferro-hornblende ()*	Feruvite ()*
Fluorapatite ()*	Fluorite ()*	Galena ()*	Goethite ()*	Gold ()*
Goslarite ()*	Graphite ()*	Grossular ()*	Grunerite ()*	Gypsum ()*
Hastingsite ()*	Helvine ()*	Hematite ()*	Heulandite-Ca ()*	Heulandite-K ()*
Nováčekite-I ()*	Jarosite ()*	Johannite ()*	Kaolinite ()*	Kasolite ()*
Kröhnkite ()*	Langite ()*	Laumontite ()*	Lavendulan ()*	Lepidocrocite ()*
Libethenite ()*	Magnetite ()*	Malachite ()*	Malayaite ()*	Manganite ()*
Marcasite ()*	Melanterite ()*	Mesolite ()*	Metanováčekite ()*	Metasaléeite ()*
Metatorbernite ()*	Metavoltine ()*	Metazeunerite ()*	Mixite ()*	Montmorillonite ()*
Muscovite ()*	Nantokite ()*	Natrolite ()*	Natron ()*	Natrozippeite ()*
Neotocite ()*	Opal ()*	Orthoclase ()*	Paratacamite ()*	Pargasite ()*
Pharmacosiderite ()*	Phenakite ()*	Pitticite ()*	Prehnite ()*	Pseudomalachite ()*
Pyrite ()*	Pyrolusite ()*	Pyrrhotite ()*	Quartz ()*	Rhodochrosite ()*
Roquesite ()*	Rutherfordine ()*	Saléeite ()*	Scheelite ()*	Schorl ()*
Schröckingerite ()*	Siderite ()*	Silver ()*	Skutterudite ()*	Sphalerite ()*
Spinel ()*	Stannite ()*	Stibnite ()*	Stokesite ()*	Talc ()*
Tennantite-(Fe) ()*	Tenorite ()*	Tetrahedrite-(Zn) ()*	Titanite ()*	Topaz ()*
Torbernite ()*	Tremolite ()*	Triploidite ()*	Trögerite ()*	Tyuyamunite ()*
Uraninite ()*	Uranophane-α ()*	Uranopilite ()*	Vandenbrandeite ()*	Vandendriesscheite ()*
Vesuvianite ()*	Vivianite ()*	Volborthite ()*	Waylandite ()*	Wickmanite ()*
Widenmannite ()*	Wittichenite ()*	Wölsendorfite ()*	Woodwardite ()*	Zeunerite ()*
Zippeite ()*

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	270	55	9	118779,118791,118792,118795,118797,118802,118803,118804,118805	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	399	45	1	118848	8803
Allanite-(Ce) ()*	Allanite Epidote	CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)	399	45	1	118848	706
Allophane ()*	Allophane	Al₂O₃(SiO₂)_1.3-2.0·2.5-3.0H₂O	270	100	1	118784	470
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	270	100	1	118790	2353
Andersonite ()*	Not in a structural group	Na₂Ca(UO₂)(CO₃)₃·5-6H₂O	399	45	1	118848	47
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	61	55	1	118778	1534
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	270	55	2	118778,118828	718
Antimony ()*	Arsenic	Sb	270	100	1	118779	363
Antlerite ()*	Not in a structural group	Cu²⁺₃(SO₄)(OH)₄	270	100	2	118784,118788	246
Aragonite ()*	Aragonite	Ca(CO₃)	399	45	6	118779,118784,118800,118802,118848,118866	3250
Arsenic ()*	Arsenic	As	399	45	3	118779,118783,118848	379
Arsenogoyazite ()*	Alunite	SrAl₃(AsO₄)(AsO₃OH)(OH)₆	270	100	1	118783	21
Arsenopyrite ()*	Arsenopyrite	FeAsS	270	55	7	118773,118779,118802,118833,118834,118866,118868	9052
Asbolane ()*	Not in a structural group	Mn⁴⁺(O,OH)₂·(Co,Ni,Mg,Ca)_x(OH)_2x·nH₂O	270	100	1	118792	143
Atacamite ()*	Atacamite	Cu₂Cl(OH)₃	270	100	6	118779,118780,118783,118795,118850,118866	544
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	270	100	2	118779,118783	2060
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	399	45	2	118800,118848	1272
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	270	100	4	118779,118789,118792,118793	260
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	270	100	3	118779,118783,118866	5509
Baryte ()*	Baryte	Ba(SO₄)	270	100	2	118795,118799	11547
Becquerelite ()*	None	Ca(UO₂)₆O₄(OH)₆·8H₂O	399	45	1	118848	92
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	270	100	2	118834,118857	4286
Bismite ()*	None	Bi₂O₃	270	100	2	118783,118866	214
Bismuth ()*	Arsenic	Bi	399	45	6	118773,118779,118783,118802,118848,118866	1966
Bismuthinite ()*	Stibnite	Bi₂S₃	270	55	7	118773,118779,118783,118800,118802,118843,118866	1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)	270	55	3	118800,118802,118866	716
Boltwoodite ()*	None	(K,Na)(UO₂)(SiO₃OH)·1.5H₂O	270	100	1	118795	67
Bornite ()*	None	Cu₅FeS₄	399	45	5	118779,118783,118833,118848,118866	5516
Botallackite ()*	Atacamite	Cu₂Cl(OH)₃	270	100	7	118780,118783,118784,118789,118795,118797,118866	49
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	399	45	6	118783,118784,118834,118848,118855,118866	1633
Brushite ()*	Gypsum	Ca(PO₃OH)·2H₂O	270	100	1	118783	104
Buttgenbachite ()*	Connellite	Cu₃₆(NO₃)₂Cl₈(OH)₆₂·nH₂O	270	100	1	118779	13
Calcite ()*	Calcite	Ca(CO₃)	270	55	17	118773,118779,118783,118791,118792,118795,118797,118799,118800,118802,118816,118828,118834,118848,118849,118866,118869	27770
Cassiterite ()*	Rutile	SnO₂	270	55	52	118773,118775,118777,118779,118780,118781,118782,118783,118784,118792,118797,118799,118800,118801,118802,118804,118805,118807,118810,118812,118813,118814,118816,118818,118820,118821,118822,118825,118826,118827,118830,118831,118832,118833,118834,118837,118840,118841,118843,118847,118848,118851,118852,118854,118855,118859,118860,118866,118868,118869,118871,118872	5171
Cerussite ()*	Aragonite	Pb(CO₃)	270	100	1	118795	4979
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	399	45	3	118779,118802,118848	925
Chalcocite ()*	None	Cu₂S	399	45	17	118779,118783,118784,118785,118795,118799,118800,118816,118832,118833,118834,118848,118859,118866,118867,118868,118869	5707
Chalcomenite ()*	None	Cu(Se⁴⁺O₃)·2H₂O	270	100	1	118785	40
Chalcophyllite ()*	Chalcophyllite	Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄·36H₂O	270	100	2	118784,118797	194
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	270	100	18	118779,118783,118784,118785,118786,118795,118799,118800,118832,118833,118834,118840,118843,118848,118850,118855,118859,118866	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈	399	45	1	118848	577
Chlorargyrite ()*	Rocksalt	AgCl	270	100	2	118779,118866	1382
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	270	55	3	118784,118800,118802	3531
Clinoatacamite ()*	Atacamite	Cu₂Cl(OH)₃	270	100	1	118866	43
Clinoclase ()*	None	Cu₃(AsO₄)(OH)₃	270	100	1	118784	127
Clinoptilolite-Ca ()*	Heulandite	Ca₃(Si₃₀Al₆)O₇₂·20H₂O	270	100	1	118784	33
Cobaltite ()*	Cobaltite	CoAsS	270	100	2	118779,118783	966
Coffinite ()*	Zircon	U(SiO₄)·nH₂O	270	100	2	118848,118849	566
Compreignacite ()*	Compreignacite	K₂(UO₂)₆O₄(OH)₆·7H₂O	399	45	3	118800,118802,118848	27
Connellite ()*	Connellite	Cu₃₆(SO₄)(OH)₆₂Cl₈·6H₂O	399	45	12	118779,118783,118784,118785,118795,118797,118800,118833,118834,118848,118855,118866	295
Copper ()*	Copper	Cu	399	45	15	118773,118779,118783,118785,118786,118795,118799,118800,118804,118833,118843,118848,118860,118866,118868	3846
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	270	100	2	118789,118828	1008
Cornubite ()*	None	Cu₅(AsO₄)₂(OH)₄	270	100	2	118779,118783	109
Cornwallite ()*	None	Cu₅(AsO₄)₂(OH)₄	270	100	2	118779,118783	175
Corundum ()*	Corundum	Al₂O₃	270	100	1	118828	1797
Covellite ()*	Covellite	CuS	399	45	1	118848	4165
Cumengeite ()*	None	Pb₂₁Cu₂₀Cl₄₂(OH)₄₀·6H₂O	270	100	1	118795	43
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	270	100	2	118787,118828	327
Cuprite ()*	Not in a structural group	Cu₂O	399	45	8	118779,118784,118785,118795,118800,118848,118866,118868	2970
Cuprosklodowskite ()*	None	Cu(UO₂)₂(SiO₃OH)₂·6H₂O	399	45	3	118779,118797,118848	58
Cyanotrichite ()*	Cyanotrichite	Cu₄Al₂(SO₄)(OH)₁₂(H₂O)₂	270	100	1	118784	179
Danalite ()*	Cancrinite-sodalite Sodalite	Be₃Fe²⁺₄(SiO₄)₃S	270	100	1	118789	58
Devilline ()*	Devilline	CaCu₄(SO₄)₂(OH)₆·3H₂O	399	45	3	118784,118848,118855	366
Dewindtite ()*	Phosphuranylite	H₂Pb₃(UO₂)₆O₄(PO₄)₄·12H₂O	270	100	1	118795	82
Diaspore ()*	Diaspore	AlO(OH)	270	100	1	118828	481
Digenite ()*	Digenite	Cu_1.8S	270	100	2	118779,118785	1027
Diopside ()*	Pyroxene	CaMgSi₂O₆	270	55	2	118791,118802	4135
Djurleite ()*	None	Cu₃₁S₁₆	399	45	2	118802,118848	300
Dolomite ()*	None	CaMg(CO₃)₂	399	45	9	118779,118795,118797,118802,118804,118828,118834,118848,118866	9895
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	270	100	2	118781,118800	648
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	270	100	4	118779,118783,118789,118791	8173
Erythrite ()*	Vivianite	Co₃(AsO₄)₂·8H₂O	270	100	4	118779,118791,118792,118800	814
Ferro-hornblende ()*	Amphibole	Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂	61	55	1	118778	271
Feruvite ()*	Tourmaline	CaFe²⁺₃(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	270	100	1	118781	15
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	399	45	10	118779,118783,118799,118800,118832,118834,118843,118848,118855,118866	2740
Fluorite ()*	Fluorite	CaF₂	399	45	11	118773,118779,118783,118799,118800,118816,118818,118848,118866,118868,118869	9617
Galena ()*	Rocksalt	PbS	270	100	2	118779,118828	24243
Goethite ()*	Diaspore	FeO(OH)	399	45	20	118779,118782,118783,118784,118785,118786,118797,118799,118800,118801,118802,118816,118824,118833,118834,118837,118843,118848,118860,118866	7437
Gold ()*	Copper	Au	61	55	1	118778	30554
Goslarite ()*	Epsomite	Zn(SO₄)·7H₂O	270	100	2	118779,118828	188
Graphite ()*	None	C	61	55	1	118778	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	270	100	2	118791,118794	1544
Grunerite ()*	Amphibole	Fe²⁺₂Fe²⁺₅Si₈O₂₂(OH)₂	61	55	1	118778	223
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	270	100	3	118848,118850,118866	6890
Hastingsite ()*	Amphibole	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	270	100	1	118783	209
Helvine ()*	Sodalite Cancrinite-sodalite	Be₃Mn²⁺₄(SiO₄)₃S	270	100	1	118866	237
Hematite ()*	Corundum	Fe₂O₃	270	55	24	118773,118779,118780,118782,118783,118785,118786,118797,118799,118802,118816,118831,118833,118834,118843,118848,118849,118851,118853,118855,118860,118865,118866,118868	14640
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	270	100	1	118784	246
Heulandite-K ()*	Heulandite	(K,Ca,Na)₅(Si₂₇Al₉)O₇₂·26H₂O	270	100	1	118784	32
Nováčekite-I ()*	None	Mg(UO₂)₂(AsO₄)₂·12H₂O	61	55	1	118802	55
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	270	100	3	118783,118784,118788	2228
Johannite ()*	Johannite	Cu(UO₂)₂(SO₄)₂(OH)₂·8H₂O	399	45	1	118848	69
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	399	45	5	118773,118782,118843,118848,118863	5591
Kasolite ()*	None	Pb(UO₂)(SiO₄)·H₂O	270	100	2	118779,118795	198
Kröhnkite ()*	Roselite	Na₂Cu(SO₄)₂·2H₂O	270	100	1	118784	27
Langite ()*	None	Cu₄(SO₄)(OH)₆·2H₂O	399	45	7	118779,118784,118800,118833,118834,118848,118866	593
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	399	45	1	118848	1271
Lavendulan ()*	None	NaCaCu₅(AsO₄)₄Cl·5H₂O	270	55	2	118795,118802	149
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	270	100	1	118833	581
Libethenite ()*	Andalusite	Cu₂(PO₄)(OH)	270	100	2	118783,118797	234
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	270	100	3	118779,118783,118791	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	399	45	13	118779,118783,118784,118785,118795,118799,118800,118802,118833,118834,118848,118855,118866	12537
Malayaite ()*	Titanite	CaSnO(SiO₄)	270	100	1	118791	40
Manganite ()*	Rutile	Mn³⁺O(OH)	270	100	3	118779,118783,118799	770
Marcasite ()*	Marcasite	FeS₂	399	45	1	118848	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	399	45	1	118848	915
Mesolite ()*	Natrolite	Na₂Ca₂(Si₉Al₆)O₃₀·8H₂O	270	100	1	118779	425
Metanováčekite ()*	None	Mg(UO₂)₂(AsO₄)₂·8H₂O	270	100	1	118797	26
Metasaléeite ()*	None	Mg(UO₂)₂(PO₄)₂·8H₂O	270	100	1	118800	11
Metatorbernite ()*	None	Cu(UO₂)₂(PO₄)₂·8H₂O	270	100	2	118797,118800	443
Metavoltine ()*	Metavoltine	K₂Na₆Fe²⁺Fe³⁺₆O₂(SO₄)₁₂·18H₂O	270	100	1	118800	78
Metazeunerite ()*	None	Cu(UO₂)₂(AsO₄)₂·8H₂O	399	45	3	118797,118800,118848	182
Mixite ()*	Mixite	Cu₆Bi(AsO₄)₃(OH)₆·3H₂O	270	100	1	118800	168
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	399	45	1	118848	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	270	100	1	118773	17380
Nantokite ()*	Sphalerite	CuCl	270	100	1	118866	35
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	270	100	2	118779,118789	1236
Natron ()*	None	Na₂(CO₃)·10H₂O	61	55	1	118778	51
Natrozippeite ()*	Zippeite	Na₅(UO₂)₈(SO₄)₄O₅(OH)₃·12H₂O	270	100	2	118848,118850	41
Neotocite ()*	Allophane	(Mn,Fe)SiO₃·H₂O (?)	399	45	2	118802,118848	186
Opal ()*	Amorphous	SiO₂·nH₂O	270	100	5	118779,118781,118843,118852,118868	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	270	100	3	118773,118779,118830	2349
Paratacamite ()*	Atacamite	Cu₃(Cu,Zn)Cl₂(OH)₆	399	45	7	118779,118783,118784,118788,118797,118848,118866	158
Pargasite ()*	Amphibole	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	270	100	1	118783	313
Pharmacosiderite ()*	Pharmacosiderite	KFe³⁺₄(AsO₄)₃(OH)₄·6-7H₂O	270	55	3	118779,118802,118866	428
Phenakite ()*	Phenakite	Be₂(SiO₄)	270	100	2	118792,118800	326
Pitticite ()*	None	[Fe,AsO₄,SO₄,H₂O] (?)	270	100	1	118779	140
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	270	100	2	118789,118866	1898
Pseudomalachite ()*	None	Cu₅(PO₄)₂(OH)₄	270	55	2	118779,118802	369
Pyrite ()*	Pyrite	FeS₂	399	45	16	118779,118783,118784,118785,118786,118795,118802,118805,118834,118840,118843,118848,118855,118860,118866,118868	39462
Pyrolusite ()*	Rutile	MnO₂	270	100	1	118784	3106
Pyrrhotite ()*	Nickeline	Fe₇S₈	270	100	3	118779,118791,118866	9056
Quartz ()*	Quartz	SiO₂	283	55	45	118773,118777,118779,118781,118782,118783,118784,118785,118786,118789,118792,118797,118799,118800,118801,118802,118804,118809,118810,118812,118814,118816,118824,118831,118833,118834,118835,118837,118840,118843,118848,118849,118850,118852,118853,118854,118855,118860,118863,118864,118866,118868,118869,118870,118872	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	399	45	7	118779,118783,118785,118799,118802,118848,118866	1711
Roquesite ()*	Chalcopyrite	CuInS₂	399	45	1	118848	46
Rutherfordine ()*	None	(UO₂)(CO₃)	270	100	1	118795	58
Saléeite ()*	None	Mg(UO₂)₂(PO₄)₂(H₂O)₁₀	270	100	1	118800	95
Scheelite ()*	Scheelite	Ca(WO₄)	270	100	3	118781,118792,118866	4894
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	283	100	20	118773,118779,118781,118782,118783,118785,118791,118792,118800,118803,118804,118816,118840,118843,118855,118860,118863,118866,118868,118872	2705
Schröckingerite ()*	None	NaCa₃(UO₂)(SO₄)(CO₃)₃F·10H₂O	399	45	1	118848	128
Siderite ()*	Calcite	Fe(CO₃)	399	45	14	118779,118783,118785,118786,118797,118799,118800,118802,118816,118824,118833,118834,118848,118855	6417
Silver ()*	Copper	Ag	270	100	3	118779,118783,118866	5186
Skutterudite ()*	Skutterudite Perovskite	CoAs₃	270	100	2	118779,118791	531
Sphalerite ()*	Sphalerite	ZnS	399	45	6	118779,118785,118828,118847,118848,118866	21482
Spinel ()*	Spinel	MgAl₂O₄	270	100	1	118828	1934
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	270	100	2	118779,118784	668
Stibnite ()*	Stibnite	Sb₂S₃	270	100	1	118783	3418
Stokesite ()*	None	CaSnSi₃O₉·2H₂O	270	100	2	118792,118793	21
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	270	100	4	118779,118780,118783,118856	3337
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃	399	45	4	118779,118848,118866,118868	1803
Tenorite ()*	None	CuO	270	100	5	118779,118800,118859,118868,118869	1101
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	270	100	2	118779,118866	5317
Titanite ()*	Titanite	CaTi(SiO₄)O	270	100	2	118781,118791	4899
Topaz ()*	Topaz	Al₂SiO₄F₂	270	100	1	118832	1476
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O	270	55	4	118795,118797,118800,118802	1059
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	270	100	1	118788	2562
Triploidite ()*	Wagnerite	Mn²⁺₂(PO₄)(OH)	61	55	1	118802	29
Trögerite ()*	Natroautunite	(H₃O)(UO₂)(AsO₄)·3H₂O	270	100	1	118795	22
Tyuyamunite ()*	None	Ca(UO₂)₂(VO₄)₂·5-8H₂O	270	100	1	118797	628
Uraninite ()*	Fluorite	UO₂	270	55	6	118779,118795,118800,118802,118848,118849	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	270	100	2	118797,118800	890
Uranopilite ()*	None	(UO₂)₆(SO₄)O₂(OH)₆·14H₂O	399	45	3	118800,118802,118848	94
Vandenbrandeite ()*	None	Cu(UO₂)(OH)₄	270	100	1	118800	9
Vandendriesscheite ()*	None	Pb_1.6(UO₂)₁₀O₆(OH)₁₁·11H₂O	270	100	1	118795	52
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀	61	55	1	118778	1395
Vivianite ()*	Vivianite	Fe²⁺₃(PO₄)₂·8H₂O	270	55	5	118779,118782,118799,118800,118802	636
Volborthite ()*	Volborthite	Cu₃V₂O₇(OH)₂·2H₂O	270	100	1	118800	155
Waylandite ()*	Alunite	BiAl₃(PO₄)₂(OH)₆	61	55	1	118802	31
Wickmanite ()*	Perovskite	Mn²⁺Sn⁴⁺(OH)₆	270	100	1	118793	24
Widenmannite ()*	None	Pb₂(OH)₂[(UO₂)(CO₃)₂]	270	100	1	118795	9
Wittichenite ()*	None	Cu₃BiS₃	399	45	2	118848,118866	297
Wölsendorfite ()*	Wölsendorfite	Pb₇(UO₂)₁₄O₁₉(OH)₄·12H₂O	270	100	1	118795	43
Woodwardite ()*	Woodwardite Hydrotalcite	(Cu_1-xAl_x)(SO₄)_x/2(OH)₂·nH₂O (x < 0.5, n < 3x/2)	270	100	2	118783,118784	57
Zeunerite ()*	Autunite	Cu(UO₂)₂(AsO₄)₂·12H₂O	270	100	3	118795,118797,118800	185
Zippeite ()*	Zippeite	K₂[(UO₂)₄(SO₄)₂O₂(OH)₂](H₂O)₄	270	55	2	118800,118802	175

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Lucy_017	Age of granite

22 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_081	270	100	270-100	40Ar - 39Ar	Lodes post-dating elvan intrusion and primary mineralization.				1265	St Just, Cornwall, England, UK	St Just	Hawkes et al. (1978		US4_51	Possibility of hydrothermal degassing of lode material around 210 Ma and 215 Ma which overprints a primary formation age of roughly 270 Ma. New mineral growth may have occurred close to 165 Ma with further hydrothermal activity at about 100 Ma. Adularia from veins in the Lizard Complex also provides indication
Lucy_255	61	55	58 ± 3	206Pb/238U	Using Pockleys Interpretations, it is acceptable to say that South Terras, Geevor, and Wheal Owles are not reliable indications of Tertiary mineralization.				1309	Wheal Owles, Botallack, St Just, Cornwall, England, UK	Wheal Owles	Darnley et al. (1965)		MM34_159	Late infilling
Lucy_074	232	230	231 ± 1	K-Ar		k-feldspar			18534	Pendeen, St Just, Cornwall, England, UK	St. Just-Pendeen	Halliday (1980)	10.2113/gsecongeo.75.5.752	EG75_752
Lucy_017	270	266	268 ± 2	87Sr/86Sr ratio, Rb-Sr.	Age granite intruded		E 47623		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Tin Mine	Darbyshire et al. (1985)	10.1144/gsjgs.142.6.1159	JGSL142_1159
Lucy_055	285	255	270 ± 15	Rb-Sr	Main stage polymetallic mineralization, preferred age determined in study	whole rock	G 1, G 3, G 5, G 6, G 7, G 8		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darbyshire et al. (1985)	10.1144/gsjgs.142.6.1159	JGSL142_1159
Lucy_069	274	266	270 ± 4	K-Ar		k-feldspar			1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor	LeBoutillier et al. (2003)		GSWE10_403
Lucy_207	288	288	288		Locality unknown. Previous age stated.	uraninite		Uraninite	1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Miller et al (1964)	10.1002/gj.3350040109	GJ4_105	Isotopic ages on the granites and associated rocks of South-West England, data of previous workers (in m.yrs)
Lucy_232	228	218	223 ± 5	206 Pb/238U	Age of Uranite				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darnley et al. (1965)		MM34_159
Lucy_237	45	45	45	206 Pb/238U	Age of Pitchblende				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darnley et al. (1965)		MM34_159	Chemical Analysis only
Lucy_238	377	137	257 ± 120	207Pb/206Pb	Isotopic Age of Uranite		NCL1105		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darnley et al. (1965)		MM34_159	(Ages taken from table with unclear titles) Chemical analysis of Pb. Analysis of 204Pb.
Lucy_239	228	218	223 ± 5	206Pb/238U	Isotopic Age of Uranite		NCL1105		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darnley et al. (1965)		MM34_159	(Ages taken from table with unclear titles) Chemical analysis of Pb. Analysis of 206Pb.
Lucy_240	241	211	226 ± 15	207Pb/235U	Isotopic Age of Uranite		NCL1105		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darnley et al. (1965)		MM34_159	(Ages taken from table with unclear titles) Chemical analysis of U. Analysis of 206Pb.
Lucy_241	399	149	274 ± 125	208Pb/232U	Isotopic Age of Uranite		NCL1105		1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darnley et al. (1965)		MM34_159	(Ages taken from table with unclear titles) Chemical analysis of Th. Analysis of 208Pb.
Lucy_256	297	283	290 ± 7	206Pb/238U	Using Pockleys Interpretations, it is acceptable to say that South Terras, Geevor, and Wheal Owles are not reliable indications of Tertiary mineralization.				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor	Darnley et al. (1965)		MM34_159
Lucy_257	228	218	223 ± 5	206Pb/238U	Using Pockleys Interpretations, it is acceptable to say that South Terras, Geevor, and Wheal Owles are not reliable indications of Tertiary mineralization.				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor	Darnley et al. (1965)		MM34_159
Lucy_258	45	45	45	206Pb/238U	Using Pockleys Interpretations, it is acceptable to say that South Terras, Geevor, and Wheal Owles are not reliable indications of Tertiary mineralization.				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor	Darnley et al. (1965)		MM34_159	Chemical age. Late infilling.
Lucy_265	290	223			The only firm conclusion about the uraninite mineralization at Geevor is that some of it must be older than 290 My. and some of it must be younger than 223 My.				1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor	Darnley et al. (1965)		MM34_159	The figure of 290 My. originally obtained from Geevor (Darnley et al., 1960), and the figure of 223 My. given here, may be mean ages of uraninite from different sections of the mine. However, from consideration of other results from the region it is likely that the figure of 290 My. is not far below the maximum age at which mineralization could have occurred.
Lucy_274	220	220	220		Galena age for Geevor Mine	galena		Galena	1296	Geevor Mine, Pendeen, St Just, Cornwall, England, UK	Geevor Mine	Darnley et al. (1965)		MM34_159	These results have been calculated using Moorbath's constants, from the tables compiled by Pockley (1961)
Lucy_062	283	275	279 ± 4	Rb/Sr	Rb/Sr Age				34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bostraze China Clay	Bray et al. (1983)	10.2113/gsecongeo.78.6.1064	EG78_1064
Lucy_063	267	257	262 ± 5	K/Ar	K/Ar Age				34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bostraze China Clay	Bray et al. (1983)	10.2113/gsecongeo.78.6.1064	EG78_1064
Lucy_136	267	257	262 ± 5	K/Ar	Previous K/Ar determination				34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bostraze China Clay	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_137	283	275	279 ± 4	Rb/Sr	Previous Rb/Sr determination				34473	Lower Bostraze China Clay Pit, Tregeseal Valley, St Just, Cornwall, England, UK	Bostraze China Clay	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064

Sample	Source Locality	Reference URL
R070066	Levant Mine, Trewellard, St Just, Cornwall, England, UK	https://rruff.info/R070066
R060421	Levant Mine, Trewellard, St Just, Cornwall, England, UK	https://rruff.info/R060421

All locality data graciously provided by mindat.org

All age data...