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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Wheal Concord, East Treskerby Mine, Skinners Bottom, St Agnes, Cornwall, England, UKi
Regional Level Types
Wheal ConcordMine
East Treskerby MineMine
Skinners BottomHamlet
St AgnesCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° 16' 13'' North , 5° 11' 29'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW726461
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Mount Hawke1,511 (2017)1.8km
Chacewater1,226 (2017)2.9km
St. Day700 (2011)3.4km
North Country773 (2017)4.0km
Redruth42,690 (2017)4.8km
Mindat Locality ID:
847
Long-form identifier:
mindat:1:2:847:6
GUID (UUID V4):
0


A small mine, owned by Concord Tin Mines Ltd. (80%) and Legal & General Assurance (20%). It is located just north of Wheal Briton, with which it was amalgamated for some time under the name East Treskerby Mine (acc. to A.K. Hamilton Jenkin). The mine was worked for tin from 1823 to 1868. After 1860, it was included with the Scorrier Consols sett. In recent years, it was intermittently re-worked, but finally abandoned because of poor results.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

Anatase
Formula: TiO2
Cassiterite
Formula: SnO2
Cassiterite var. Wood Tin
Formula: SnO2
Chalcopyrite
Formula: CuFeS2
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Marcasite
Formula: FeS2
References:
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
References:
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
References:
Native Sulphur
Formula: S8
References:
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Sphalerite
Formula: ZnS
'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Cassiterite4.DB.05SnO2
var. Wood Tin4.DB.05SnO2
Anatase4.DD.05TiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Unclassified
'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H ClinochloreMg5Al(AlSi3O10)(OH)8
H MelanteriteFe2+(H2O)6SO4 · H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
BBoron
B TourmalineAD3G6 (T6O18)(BO3)3X3Z
OOxygen
O AnataseTiO2
O CassiteriteSnO2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O MelanteriteFe2+(H2O)6SO4 · H2O
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O TourmalineAD3G6 (T6O18)(BO3)3X3Z
O Cassiterite var. Wood TinSnO2
MgMagnesium
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S MarcasiteFeS2
S MelanteriteFe2+(H2O)6SO4 · H2O
S PyriteFeS2
S SphaleriteZnS
S Native SulphurS8
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
TiTitanium
Ti AnataseTiO2
FeIron
Fe ChalcopyriteCuFeS2
Fe MarcasiteFeS2
Fe MelanteriteFe2+(H2O)6SO4 · H2O
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
SnTin
Sn CassiteriteSnO2
Sn Cassiterite var. Wood TinSnO2

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

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

 
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