Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Tregurtha Downs Mine, St Hilary, Cornwall, England, UKi
Regional Level Types
Tregurtha Downs MineMine (Abandoned)
St HilaryCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° 7' 41'' North , 5° 26' 47'' West
Latitude & Longitude (decimal):
50.12814,-5.44659
GeoHash:
G#: gbujhj9ct
GRN:
N34W03
UK National Grid Reference:
SW537311
Type:
Mine (Abandoned) - last checked 2024
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Marazion1,294 (2017)2.0km
Germoe175 (2017)5.0km
Uny Lelant1,056 (2017)6.1km
Hayle8,210 (2017)6.5km
Penzance19,872 (2017)6.5km
Mindat Locality ID:
1330
Long-form identifier:
mindat:1:2:1330:0
GUID (UUID V4):
0


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

8 valid minerals.

Detailed Mineral List:

ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Bismutite
Formula: (BiO)2CO3
ⓘ Cassiterite
Formula: SnO2
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Cuprite
Formula: Cu2O
ⓘ Cuprite var. Chalcotrichite
Formula: Cu2O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Native Copper
Formula: Cu
ⓘ Quartz
Formula: SiO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
ⓘCuprite
var. Chalcotrichite		4.AA.10Cu2O
ⓘ4.AA.10Cu2O
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
Group 5 - Nitrates and Carbonates
ⓘBismutite5.BE.25(BiO)2CO3

List of minerals for each chemical element

CCarbon
Cⓘ Bismutite(BiO)2CO3
OOxygen
Oⓘ Bismutite(BiO)2CO3
Oⓘ CassiteriteSnO2
Oⓘ Cuprite var. ChalcotrichiteCu2O
Oⓘ CupriteCu2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ QuartzSiO2
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ ChalcopyriteCuFeS2
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ ChalcopyriteCuFeS2
Feⓘ MagnetiteFe2+Fe23+O4
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ Cuprite var. ChalcotrichiteCu2O
Cuⓘ CupriteCu2O
Cuⓘ Native CopperCu
AsArsenic
Asⓘ ArsenopyriteFeAsS
SnTin
Snⓘ CassiteriteSnO2
BiBismuth
Biⓘ Bismutite(BiO)2CO3

Geochronology

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Paleozoic
  Permian
   Guadalupian
ⓘ Major polymetallic mineralization~270 MaCornwall, England, UK
   Cisuralian
ⓘ Porphyry dikes intruded (latest age)~275 MaCornwall, England, UK
ⓘ Greisenization (latest age)~280 MaCornwall, England, UK
ⓘ Porphyry dikes intruded (earliest age)~280 MaCornwall, England, UK
ⓘ Formation of metallized pegmatites~285 MaCornwall, England, UK
ⓘ Greisenization (earliest age)~285 MaCornwall, England, UK
ⓘ Emplacement of major plutons~295 MaCornwall, England, UK

Localities in this Region

UK

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Dines, H. G. (1956) The Metalliferous Mining Region of South-West England (1st ed.) Vol. 1. Geological Survey of Great Britain, London.pp.178-180
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