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 Sheba (Great Sheba Consols; Trehill Mine; West Wheal Martha), Luckett, Callington, Stokeclimsland, Cornwall, England, UKi
Regional Level Types
Wheal Sheba (Great Sheba Consols; Trehill Mine; West Wheal Martha)Mine
LuckettHamlet
Callington- not defined -
StokeclimslandVillage
CornwallCounty
EnglandConstituent Country
UKCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
50° North , 4° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Köppen climate type:
Mindat Locality ID:
64814
Long-form identifier:
mindat:1:2:64814:0
GUID (UUID V4):
0


A series of workings following the east-west lode along the valley. The majority of work appears to have been centered on New Engine Shaft and Old Engine Shaft at the Old Mill end of the sett. New Engine Shaft is to the south of the stream (there is no evidence of the adit portal recorded by Dines) on the valley side and has a small rock and sand dump. The Chimney lies between the forestry track and the stream. Old Engine Shaft is just to the north of the stream with a quantity of rock containing abundant poor quality Pyrite and Arsenopyrite but few copper minerals.
A shaft on the north side of the valley in the middle of the woodland has a large very overgrown rock dump said to contain traces of Galena. A further shaft is visible on the valley side in private ground towards the far end of the woodland.
Visited Jan 2005.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

6 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Chalcopyrite
Formula: CuFeS2
Native Sulphur
Formula: S8
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Sphalerite
Formula: ZnS

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
Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2

List of minerals for each chemical element

OOxygen
O QuartzSiO2
SiSilicon
Si QuartzSiO2
SSulfur
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S PyriteFeS2
S SphaleriteZnS
S Native SulphurS8
FeIron
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS

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

  • England
    • Cornwall

Other Regions, Features and Areas containing this locality


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