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:
Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK

Oldest recorded age at locality: 278.7
Youngest recorded age at locality: 268

mindat Locality ID: 965
mindat URL: http://www.mindat.org/loc-965.html

Tectonic Settings:

Total number of sublocalities beneath "Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK": 0
Total number of bottom-level sublocalities: 0

Latitude: 50°22'45"N
Longitude: 4°48'27"W
Decimal Degree (lat, lon): 50.379166666667,-4.8075

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.

Alunite	Amorphous	Andalusite	Apatite	Arseniosiderite	Arsenopyrite	Arthurite	Beraunite	Beryl	Brochantite
Chalcopyrite	Clay	Columbite	Connellite	Copper	Corundum	Covellite	Digenite	Dufrénite	Feldspar
Fluorite	Kaolinite	Lazulite	Leucophosphite	Malachite	Mica	None	Not in a structural group	Pharmacosiderite	Phosphosiderite
Quartz	Rockbridgeite	Rutile	Scheelite	Sphalerite	Stannite	Stannoidite	Stibnite	Strunzite	Tetrahedrite
Topaz	Tourmaline	Turquoise	Wardite	Wavellite	Wurtzite	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 Bi C Ca Cl Cu F Fe H K La Li Mg Mn Na Nb O P Pb S Si Sn Sr Ti U W Zn Zr

Elements from minerals reported directly at this locality: Al As B Be Bi C Ca Cl Cu F Fe H K La Li Mg Mn Na Nb O P Pb S Si Sn Sr Ti U W Zn Zr

Structural Groups for minerals in this locality:
Alunite Amorphous Andalusite Apatite Arseniosiderite Arsenopyrite Arthurite Beraunite Beryl Brochantite
Chalcopyrite Clay Columbite Connellite Copper Corundum Covellite Digenite Dufrénite Feldspar
Fluorite Kaolinite Lazulite Leucophosphite Malachite Mica None Not in a structural group Pharmacosiderite Phosphosiderite
Quartz Rockbridgeite Rutile Scheelite Sphalerite Stannite Stannoidite Stibnite Strunzite Tetrahedrite
Topaz Tourmaline Turquoise Wardite Wavellite Wurtzite Zircon

68 IMA Minerals at location:

Albite ()*	Arsenopyrite ()*	Arthurite ()*	Azurite ()*	Barbosalite ()*
Beraunite ()*	Beryl ()*	Bismuthinite ()*	Brochantite ()*	Cacoxenite ()*
Cassiterite ()*	Chalcopyrite ()*	Chalcosiderite ()*	Columbite-(Mn) ()*	Connellite ()*
Copper ()*	Corundum ()*	Covellite ()*	Cuprite ()*	Cuprotungstite ()*
Cyrilovite ()*	Digenite ()*	Dravite ()*	Dufrénite ()*	Elbaite ()*
Ferberite ()*	Florencite-(La) ()*	Fluorapatite ()*	Fluorite ()*	Frondelite ()*
Goyazite ()*	Hentschelite ()*	Kaolinite ()*	Kuramite ()*	Leucophosphite ()*
Libethenite ()*	Malachite ()*	Mawsonite ()*	Metatorbernite ()*	Metavariscite ()*
Microcline ()*	Mitridatite ()*	Morinite ()*	Muscovite ()*	Opal ()*
Orthoclase ()*	Pharmacosiderite ()*	Pseudomalachite ()*	Pyromorphite ()*	Quartz ()*
Rockbridgeite ()*	Rutile ()*	Scheelite ()*	Schorl ()*	Scorodite ()*
Stannite ()*	Stannoidite ()*	Strunzite ()*	Tennantite-(Fe) ()*	Topaz ()*
Torbernite ()*	Turquoise ()*	Variscite ()*	Varlamoffite ()*	Wavellite ()*
Waylandite ()*	Wurtzite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	278.7	268	8803
Arsenopyrite ()*	Arsenopyrite	FeAsS	278.7	268	9052
Arthurite ()*	Arthurite	CuFe³⁺₂(AsO₄)₂(OH)₂·4H₂O	278.7	268	35
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	278.7	268	5509
Barbosalite ()*	Lazulite	Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂	278.7	268	43
Beraunite ()*	Beraunite	Fe³⁺₆(PO₄)₄O(OH)₄·6H₂O	278.7	268	136
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	278.7	268	4286
Bismuthinite ()*	Stibnite	Bi₂S₃	278.7	268	1935
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	278.7	268	1633
Cacoxenite ()*	None	Fe³⁺₂₄AlO₆(PO₄)₁₇(OH)₁₂·75H₂O	278.7	268	280
Cassiterite ()*	Rutile	SnO₂	278.7	268	5171
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	278.7	268	27198
Chalcosiderite ()*	Turquoise	CuFe³⁺₆(PO₄)₄(OH)₈·4H₂O	278.7	268	77
Columbite-(Mn) ()*	Columbite	Mn²⁺Nb₂O₆	278.7	268	289
Connellite ()*	Connellite	Cu₃₆(SO₄)(OH)₆₂Cl₈·6H₂O	278.7	268	295
Copper ()*	Copper	Cu	278.7	268	3846
Corundum ()*	Corundum	Al₂O₃	278.7	268	1797
Covellite ()*	Covellite	CuS	278.7	268	4165
Cuprite ()*	Not in a structural group	Cu₂O	278.7	268	2970
Cuprotungstite ()*	None	Cu²⁺₃(WO₄)₂(OH)₂	278.7	268	67
Cyrilovite ()*	Wardite	NaFe³⁺₃(PO₄)₂(OH)₄·2H₂O	278.7	268	60
Digenite ()*	Digenite	Cu_1.8S	278.7	268	1027
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	278.7	268	648
Dufrénite ()*	Dufrénite	Ca_0.5Fe²⁺Fe³⁺₅(PO₄)₄(OH)₆·2H₂O	278.7	268	139
Elbaite ()*	Tourmaline	Na(Al_1.5Li_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	278.7	268	520
Ferberite ()*	Columbite	Fe²⁺(WO₄)	278.7	268	551
Florencite-(La) ()*	Alunite	LaAl₃(PO₄)₂(OH)₆	278.7	268	12
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	278.7	268	2740
Fluorite ()*	Fluorite	CaF₂	278.7	268	9617
Frondelite ()*	Rockbridgeite	(Mn²⁺_0.5Fe³⁺_0.5)₂Fe³⁺₃(PO₄)₃(OH)₅	278.7	268	52
Goyazite ()*	Alunite	SrAl₃(PO₄)(PO₃OH)(OH)₆	278.7	268	173
Hentschelite ()*	Lazulite	CuFe³⁺₂(PO₄)₂(OH)₂	278.7	268	20
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	278.7	268	5591
Kuramite ()*	Stannite Sphalerite	Cu₃SnS₄	278.7	268	12
Leucophosphite ()*	Leucophosphite	KFe³⁺₂(PO₄)₂(OH)·2H₂O	278.7	268	110
Libethenite ()*	Andalusite	Cu₂(PO₄)(OH)	278.7	268	234
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	278.7	268	12537
Mawsonite ()*	None	Cu₆Fe₂SnS₈	278.7	268	92
Metatorbernite ()*	None	Cu(UO₂)₂(PO₄)₂·8H₂O	278.7	268	443
Metavariscite ()*	Phosphosiderite	Al(PO₄)·2H₂O	278.7	268	27
Microcline ()*	Feldspar	K(AlSi₃O₈)	278.7	268	4924
Mitridatite ()*	Arseniosiderite	Ca₂Fe³⁺₃O₂(PO₄)₃·3H₂O	278.7	268	129
Morinite ()*	None	NaCa₂Al₂(PO₄)₂(OH)F₄·2H₂O	278.7	268	22
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	278.7	268	17380
Opal ()*	Amorphous	SiO₂·nH₂O	278.7	268	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	278.7	268	2349
Pharmacosiderite ()*	Pharmacosiderite	KFe³⁺₄(AsO₄)₃(OH)₄·6-7H₂O	278.7	268	428
Pseudomalachite ()*	None	Cu₅(PO₄)₂(OH)₄	278.7	268	369
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	278.7	268	1725
Quartz ()*	Quartz	SiO₂	278.7	268	61156
Rockbridgeite ()*	Rockbridgeite	(Fe²⁺_0.5Fe³⁺_0.5)₂Fe³⁺₃(PO₄)₃(OH)₅	278.7	268	206
Rutile ()*	Rutile	TiO₂	278.7	268	5614
Scheelite ()*	Scheelite	Ca(WO₄)	278.7	268	4894
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	278.7	268	2705
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O	278.7	268	1153
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	278.7	268	668
Stannoidite ()*	Stannoidite	Cu₈(Fe,Zn)₃Sn₂S₁₂	278.7	268	80
Strunzite ()*	Strunzite	Mn²⁺Fe³⁺₂(PO₄)₂(OH)₂·6H₂O	278.7	268	98
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃	278.7	268	1803
Topaz ()*	Topaz	Al₂SiO₄F₂	278.7	268	1476
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O	278.7	268	1059
Turquoise ()*	Turquoise	CuAl₆(PO₄)₄(OH)₈·4H₂O	278.7	268	484
Variscite ()*	None	Al(PO₄)·2H₂O	278.7	268	301
Varlamoffite ()*	Rutile	(Sn,Fe)(O,OH)₂	278.7	268	56
Wavellite ()*	Wavellite	Al₃(PO₄)₂(OH)₃·5H₂O	278.7	268	374
Waylandite ()*	Alunite	BiAl₃(PO₄)₂(OH)₆	278.7	268	31
Wurtzite ()*	Wurtzite	ZnS	278.7	268	372
Zircon ()*	Zircon	Zr(SiO₄)	278.7	268	5251

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Lucy_138a	277.7	269.1	273.4 ± 4.3	K/Ar	New K/Ar determination	223	965	Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK	Gunheath	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138b	278.7	269.5	274.1 ± 4.6	K/Ar	New K/Ar determination	230	965	Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK	Gunheath	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138c	276.8	268	272.4 ± 4.4	K/Ar	New K/Ar determination	237	965	Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK	Gunheath	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064
Lucy_138d	273.9	272.9	273.4 ± 4.3	K/Ar	New K/Ar determination		965	Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK	Gunheath	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064	Arithmetic mean of 3 samples

Sample	Source Locality	Reference URL
R060339	Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK	https://rruff.info/R060339
R060504	Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK	https://rruff.info/R060504
R060338	Gunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK	https://rruff.info/R060338

All locality data graciously provided by mindat.org

All age data...