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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Hallets Shaft, West Caradon Mine, Crow's Nest, St Cleer, Cornwall, England, UKi
Regional Level Types
Hallets ShaftGroup of Shafts
West Caradon MineMine (Abandoned)
Crow's NestHamlet
St CleerCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° 30' 15'' North , 4° 27' 14'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SX260701
Type:
Group of Shafts
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Pensilva1,663 (2017)2.8km
Liskeard9,237 (2017)5.6km
Dobwalls1,418 (2017)6.8km
Menheniot782 (2017)7.7km
Callington5,786 (2017)10.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
British Micromount Society, Devon and Cornwall Branch MeetingsLiskeard, Cornwall5km
Mindat Locality ID:
5154
Long-form identifier:
mindat:1:2:5154:8
GUID (UUID V4):
0


The shaft was in the corner of the field where the rough lane from Craddock Moor turns sharply right (southward). A long finger dump of materials now borders the lane. This produces dark purple fluorite often in a soft granite matrix and sometimes with chlorite. Occasional pieces may be cuprite or chalcocite(?) often with associated secondaries such as malachite. Virginia Maine, April '22

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

Chalcopyrite
Formula: CuFeS2
Cuprite
Formula: Cu2O
Fluorite
Formula: CaF2
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Malachite
Formula: Cu2(CO3)(OH)2
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Spangolite
Formula: Cu6Al(SO4)(OH)12Cl · 3H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Spangolite7.DD.15Cu6Al(SO4)(OH)12Cl · 3H2O
Group 8 - Phosphates, Arsenates and Vanadates
Pseudomalachite8.BD.05Cu5(PO4)2(OH)4

List of minerals for each chemical element

HHydrogen
H LangiteCu4(SO4)(OH)6 · 2H2O
H MalachiteCu2(CO3)(OH)2
H PseudomalachiteCu5(PO4)2(OH)4
H SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O CupriteCu2O
O LangiteCu4(SO4)(OH)6 · 2H2O
O MalachiteCu2(CO3)(OH)2
O PseudomalachiteCu5(PO4)2(OH)4
O SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
FFluorine
F FluoriteCaF2
AlAluminium
Al SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
PPhosphorus
P PseudomalachiteCu5(PO4)2(OH)4
SSulfur
S ChalcopyriteCuFeS2
S LangiteCu4(SO4)(OH)6 · 2H2O
S SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
ClChlorine
Cl SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
CaCalcium
Ca FluoriteCaF2
FeIron
Fe ChalcopyriteCuFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu CupriteCu2O
Cu LangiteCu4(SO4)(OH)6 · 2H2O
Cu MalachiteCu2(CO3)(OH)2
Cu PseudomalachiteCu5(PO4)2(OH)4
Cu SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O

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

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