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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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Abercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UKi
Regional Level Types
Abercynon Colliery (Dowlais Cardiff)Colliery (Abandoned)
Abercynon- not defined -
Rhondda Cynon TafCounty Borough
WalesCountry
UKCountry

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Latitude & Longitude (WGS84):
51° 38' 27'' North , 3° 19' 41'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
ST081945
Type:
Colliery (Abandoned) - last checked 2020
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Abercynon5,983 (2017)0.5km
Ynysybwl3,503 (2017)2.2km
Treharris12,352 (2017)3.0km
Nelson12,857 (2011)3.3km
Pontypridd30,420 (2011)4.4km
Mindat Locality ID:
5157
Long-form identifier:
mindat:1:2:5157:9
GUID (UUID V4):
0
Other/historical names associated with this locality:
Mid Glamorgan; Glamorgan


The last colliery to be sunk in the Cynon Valley and originally known as Dowlais Cardiff Colliery [but sometimes incorectly called either Carnetown or Cilfynydd Colliery], Abercynon was sunk between 1889-96 by the Dowlais Iron Company.

By the turn of the century, ownership passed into the hands of Guest Keen and Nettlefolds Ltd. and in 1930, Welsh Associated Collieries. The latter were then absorbed into the Powell Duffryn Company Ltd. who then owned it until Nationalisation in 1947.

2,502 men were employed here in 1908.

Anercynon was linked to the Lady Windsor Colliery in 1975, both collieries then being worked as a single unit. The colliery closed in 1988.

Heavily overgrown tips remain on Cilfynydd (Craig Evan-Leyshon)Common.

Micro crystals of smithsonite have been reported from a small riverside tip (now removed), which is the first report of this mineral in the coalfield. Other minerals were generally more common on the Cilfynydd Common tip.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


8 valid minerals.

Detailed Mineral List:

Chalcopyrite
Formula: CuFeS2
References:
Dolomite
Formula: CaMg(CO3)2
Fluorapatite
Formula: Ca5(PO4)3F
Description: Carbonate-fluorapatite has recently been identified in the south Wales coalfield. It occurs within ironstones as minute water-clear crystals with a superficial resemblence to the infinitely more common siderite.
Fluorapatite var. Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Description: Carbonate-fluorapatite has recently been identified in the south Wales coalfield. It occurs within ironstones as minute water-clear crystals with a superficial resemblence to the infinitely more common siderite.
Galena
Formula: PbS
References:
Millerite
Formula: NiS
Siderite
Formula: FeCO3
Smithsonite
Formula: ZnCO3
Sphalerite
Formula: ZnS

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Millerite2.CC.20NiS
Galena2.CD.10PbS
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Smithsonite5.AB.05ZnCO3
Dolomite5.AB.10CaMg(CO3)2
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite
var. Carbonate-rich Fluorapatite
8.BN.05Ca5(PO4,CO3)3(F,O)
8.BN.05Ca5(PO4)3F

List of minerals for each chemical element

CCarbon
C Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
C DolomiteCaMg(CO3)2
C SideriteFeCO3
C SmithsoniteZnCO3
OOxygen
O Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
O DolomiteCaMg(CO3)2
O FluorapatiteCa5(PO4)3F
O SideriteFeCO3
O SmithsoniteZnCO3
FFluorine
F Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
MgMagnesium
Mg DolomiteCaMg(CO3)2
PPhosphorus
P Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
P FluorapatiteCa5(PO4)3F
SSulfur
S ChalcopyriteCuFeS2
S GalenaPbS
S MilleriteNiS
S SphaleriteZnS
CaCalcium
Ca Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Ca DolomiteCaMg(CO3)2
Ca FluorapatiteCa5(PO4)3F
FeIron
Fe ChalcopyriteCuFeS2
Fe SideriteFeCO3
NiNickel
Ni MilleriteNiS
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SmithsoniteZnCO3
Zn SphaleriteZnS
PbLead
Pb GalenaPbS

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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