Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Breage, Cornwall, England, UK

Oldest recorded age at locality: 300
Youngest recorded age at locality: 270

mindat Locality ID: 1207
mindat URL: http://www.mindat.org/loc-1207.html

Tectonic Settings:

Total number of sublocalities beneath "Breage, Cornwall, England, UK": 33
Total number of bottom-level sublocalities: 24

Number of Child Localities: 14
Child Localities:
Carleen
Carn Grey
Carnmeal Downs
Godolphin Cross
Great Wheal Fortune
Kenneggy Downs
Megiliggar Rocks (Tremearne Pegmatite)
Praa Sands
Rinsey
South Wheal Fortune
Tregonning Hill
Trequean (Trequeen)
Trew
West Godolphin Mine (Wheal Junket)

Latitude: 50°6'42"N
Longitude: 5°21'13"W
Decimal Degree (lat, lon): 50.111666666667,-5.3536111111111

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.

Alluaudite	Amorphous	Amphibole	Apatite	Arsenopyrite	Calcite	Chalcopyrite	Clay	Columbite	Copper
Corundum	Diaspore	Feldspar	Fluorite	Gypsum	Kaolinite	Löllingite	Malachite	Mica	None
Not in a structural group	Olivine	Perovskite	Pharmacosiderite	Pyrite	Quartz	Rhabdophane	Rocksalt	Rutile	Skutterudite
Smectite-vermiculite	Sphalerite	Stibnite	Sulphur	Talc	Tetrahedrite	Topaz	Tourmaline	Triplite	Vivianite
Zircon

Actinolite ()*	Albite ()*	Alluaudite ()*	Amblygonite ()*	Arsenopyrite ()*
Bertrandite ()*	Bornite ()*	Cassiterite ()*	Chalcocite ()*	Chalcopyrite ()*
Copper ()*	Cuprite ()*	Dolomite ()*	Erythrite ()*	Fluorapatite ()*
Fluorite ()*	Galena ()*	Goethite ()*	Gypsum ()*	Hematite ()*
Ixiolite ()*	Kaolinite ()*	Löllingite ()*	Malachite ()*	Mimetite ()*
Muscovite ()*	Nontronite ()*	Opal ()*	Orthoclase ()*	Pharmacosiderite ()*
Pyrite ()*	Quartz ()*	Rutile ()*	Schorl ()*	Scorodite ()*
Siderite ()*	Skutterudite ()*	Sphalerite ()*	Stibnite ()*	Sulphur ()*
Talc ()*	Tennantite-(Fe) ()*	Tenorite ()*	Topaz ()*	Torbernite ()*
Triphylite ()*	Triplite ()*	Tristramite ()*	Uraninite ()*	Vivianite ()*
Zircon ()*	Zwieselite ()*

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 C Ca Cl Co Cu F Fe H K Li Mg Mn Na Nb O P Pb S Sb Si Sn Ta Ti U Zn Zr

Elements from minerals reported directly at this locality: H O Si

Structural Groups for minerals in this locality:
Alluaudite Amorphous Amphibole Apatite Arsenopyrite Calcite Chalcopyrite Clay Columbite Copper
Corundum Diaspore Feldspar Fluorite Gypsum Kaolinite Löllingite Malachite Mica None
Not in a structural group Olivine Perovskite Pharmacosiderite Pyrite Quartz Rhabdophane Rocksalt Rutile Skutterudite
Smectite-vermiculite Sphalerite Stibnite Sulphur Talc Tetrahedrite Topaz Tourmaline Triplite Vivianite
Zircon

52 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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			1	117233	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	296	270	4	117204,117208,117216,117223	8803
Alluaudite ()*	Alluaudite	NaMnFe³⁺₂(PO₄)₃			1	117216	94
Amblygonite ()*	None	LiAl(PO₄)F			2	117216,117222	244
Arsenopyrite ()*	Arsenopyrite	FeAsS			4	117204,117211,117212,117214	9052
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂			1	117208	606
Bornite ()*	None	Cu₅FeS₄			1	117212	5516
Cassiterite ()*	Rutile	SnO₂	300	282	12	117202,117203,117204,117207,117208,117210,117211,117212,117214,117225,117226,117232	5171
Chalcocite ()*	None	Cu₂S	300	282	4	117210,117212,117225,117233	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	300	282	8	117204,117208,117210,117211,117212,117225,117226,117233	27198
Copper ()*	Copper	Cu	300	282	2	117204,117210	3846
Cuprite ()*	Not in a structural group	Cu₂O			2	117211,117224	2970
Dolomite ()*	None	CaMg(CO₃)₂			1	117204	9895
Erythrite ()*	Vivianite	Co₃(AsO₄)₂·8H₂O			1	117204	814
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			2	117216,117221	2740
Fluorite ()*	Fluorite	CaF₂			3	117211,117216,117225	9617
Galena ()*	Rocksalt	PbS			1	117233	24243
Goethite ()*	Diaspore	FeO(OH)	300	282	3	117210,117211,117233	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	117211	6890
Hematite ()*	Corundum	Fe₂O₃			1	117204	14640
Ixiolite ()*	Columbite	(Ta_2/3Mn²⁺_1/3)O₂			1	117216	148
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	284	276	2	117225,117228	5591
Löllingite ()*	Löllingite	FeAs₂			1	117216	762
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	117233	12537
Mimetite ()*	Apatite	Pb₅(AsO₄)₃Cl			1	117224	1107
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			2	117212,117216	17380
Nontronite ()*	Clay Smectite-vermiculite	Na_0.3Fe³⁺₂(Si,Al)₄O₁₀(OH)₂·nH₂O			2	117205,117216	471
Opal ()*	Amorphous	SiO₂·nH₂O	300	270	0		2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	296	270	4	117204,117212,117216,117223	2349
Pharmacosiderite ()*	Pharmacosiderite	KFe³⁺₄(AsO₄)₃(OH)₄·6-7H₂O			1	117212	428
Pyrite ()*	Pyrite	FeS₂	300	276	7	117203,117204,117210,117211,117212,117227,117233	39462
Quartz ()*	Quartz	SiO₂	300	282	8	117204,117210,117211,117212,117216,117222,117225,117233	61156
Rutile ()*	Rutile	TiO₂			1	117216	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	296	270	2	117216,117223	2705
Scorodite ()*	None	Fe³⁺(AsO₄)·2H₂O			1	117212	1153
Siderite ()*	Calcite	Fe(CO₃)			2	117211,117225	6417
Skutterudite ()*	Skutterudite Perovskite	CoAs₃			1	117204	531
Sphalerite ()*	Sphalerite	ZnS			2	117204,117233	21482
Stibnite ()*	Stibnite	Sb₂S₃			1	117204	3418
Sulphur ()*	Sulphur	S			1	117211	2045
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	117204	3337
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃			2	117211,117224	1803
Tenorite ()*	None	CuO			4	117204,117211,117212,117233	1101
Topaz ()*	Topaz	Al₂SiO₄F₂			2	117212,117216	1476
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O			1	117212	1059
Triphylite ()*	Olivine	LiFe²⁺(PO₄)			1	117216	313
Triplite ()*	Triplite	Mn²⁺₂(PO₄)F			1	117216	233
Tristramite ()*	Rhabdophane	(Ca,U⁴⁺,Fe³⁺)(PO₄,SO₄)·2H₂O			2	117225,117230	7
Uraninite ()*	Fluorite	UO₂			2	117225,117230	2718
Vivianite ()*	Vivianite	Fe²⁺₃(PO₄)₂·8H₂O			1	117216	636
Zircon ()*	Zircon	Zr(SiO₄)			1	117225	5251
Zwieselite ()*	Triplite	Fe²⁺₂(PO₄)F			1	117216	47

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Lucy_128	300	282	291 ± 9	K/Ar	Previous K/Ar determination	muscovite	Muscovite	36590	Godolphin Mine (Godolphin Bal), Godolphin Cross, Breage, Cornwall, England, UK	Godolphin Granite	Bray and Spooner (1983)	10.1144/GSL.SP.1964.001.01.15	EG78_1064	Arithmetic mean of 2 muscovite samples from Godolphin Granite
Lucy_222	296	282	289 ± 7	K-Ar	Age of Godolphin Granite	muscovite	Muscovite	866	Trewavas Head, Rinsey, Breage, Cornwall, England, UK	Trewavas Head	Miller et al (1964)	10.1002/gj.3350040109	GJ4_105	New ages on the granites and derived rocks
Lucy_223	290	270	280 ± 10	K-Ar	Age of Godolphin Granite	muscovite	Muscovite	866	Trewavas Head, Rinsey, Breage, Cornwall, England, UK	Trewavas Head pegmatoid	Miller et al (1964)	10.1002/gj.3350040109	GJ4_105	New ages on the granites and derived rocks
Lucy_230	284	276	280 ± 4		Dated age of Tregonning Granite			38265	Tregonning Hill, Breage, Cornwall, England, UK	Tregonning Granite	Wilkinson et al (1995)	10.1002/gj.3350040109	CG123_239

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...