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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Nangiles Mine (Wheal Nangiles), Chacewater, Cornwall, England, UKi
Regional Level Types
Nangiles Mine (Wheal Nangiles)Mine (Abandoned)
ChacewaterCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° 14' 9'' North , 5° 8' 9'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW764421
Type:
Mine (Abandoned) - last checked 2020
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Perranwell1,207 (2017)2.7km
Chacewater1,226 (2017)2.8km
St. Day700 (2011)3.6km
Devoran400 (2014)4.0km
Ponsanooth967 (2017)4.1km
Mindat Locality ID:
194326
Long-form identifier:
mindat:1:2:194326:2
GUID (UUID V4):
0


Hamilton Jenkin records that in 1808 the mine was said to be "throwing up immense quantities of copper, zinc and tin". He goes on to say that by 1870 the mine was 160 fathoms deep and chiefly productive of pyrite and to a lesser extent blende. However the water being pumped from the mine was so acidic [no doubt due to decomposition of the pyrite] that the pipes had to be lined with brass which was economically unsustainable.

Part of the tip forms a very prominent feature beside the cycle path, though the tips extend off through the trees and undergrowth to Bread and Cheese Shaft beside the Carnon River, where there is another small tip. At the top of the main tip is the single wall of an engine house beside a concrete capped shaft. In 1963 Hamilton Jenkin referred to the engine house as "imposing". Marcasite and quartz are both highly abundant in the main tip. Jan 2023

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

11 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Cassiterite
Formula: SnO2
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Galena
Formula: PbS
Kaolinite
Formula: Al2(Si2O5)(OH)4
'Limonite'
Marcasite
Formula: FeS2
Native Gold ?
Formula: Au
Native Sulphur ?
Formula: S8
Description: Collins (1892) marks the occurrence as questionable.
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Sphalerite
Formula: ZnS
'Wolframite Group'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold ?1.AA.05Au
Native Sulphur ?1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Cassiterite4.DB.05SnO2
'Wolframite Group'4.DB.30 va
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
'Chlorite Group'-
'Limonite'-

List of minerals for each chemical element

HHydrogen
H KaoliniteAl2(Si2O5)(OH)4
OOxygen
O CassiteriteSnO2
O KaoliniteAl2(Si2O5)(OH)4
O QuartzSiO2
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si KaoliniteAl2(Si2O5)(OH)4
Si QuartzSiO2
SSulfur
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S GalenaPbS
S MarcasiteFeS2
S PyriteFeS2
S SphaleriteZnS
S Native SulphurS8
FeIron
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe MarcasiteFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
SnTin
Sn CassiteriteSnO2
AuGold
Au Native GoldAu
PbLead
Pb GalenaPbS

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

Other Regions, Features and Areas containing this locality


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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