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Porphyry quarry, Bierghes, Rebecq, Walloon Brabant, Wallonia, Belgiumi
Regional Level Types
Porphyry quarryQuarry
Bierghes- not defined -
Rebecq- not defined -
Walloon BrabantProvince
WalloniaRegion
BelgiumCountry

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Name(s) in local language(s):Carrière du porphyre, Bierghes, Rebecq, Brabant Wallon Province, Belgique
Latitude & Longitude (WGS84): 50° 41' 16'' North , 4° 6' 0'' East
Latitude & Longitude (decimal): 50.68778,4.10000
GeoHash:G#: u14bm73t8
Locality type:Quarry
Köppen climate type:Cfb : Temperate oceanic climate


Porphyry quarry.

The quarry, a subsidiary of the CUP group, extracts porphyry, a micro-diorite. The quarry is located on a 30km long sill that runs in a roughly north-west south-east direction along the Nieuwpoort-Asquempont fault, on the southern edge of the Brabant massif.
The annual production of Bierghes quarry is about 400.000 metric tons per year. Reserves are estimated at 80 million metric tons.
The management of the Bierghes quarry has been continuously innovating in order to make sure that the operation is being run as clean as possible. For instance: the road from the quarry floor, leading towards the surface, is being kept wet by sprinkler installations the whole time, in order to eliminate dust. Apart from that, all vehicles that leave the quarry area have to drive through a shower.

Porphyry is an igneous rock dating from the Late Ordovician period, about 450 million years ago.
It consists of large-grained crystals, such as feldspar or quartz, dispersed in a fine-grained feldspar matrix or ground-mass. Up to 80% of the rock consists of various feldspar group minerals.

Porphyry is an extremely durable rock, very resistant to both mechanical as well as chemical influences.
Originally, because of its durability, the porphyry was used for the production of cobble stones for roads.
One can still see them in many old roads in Belgium, Holland and the north of France (the annual speed cycling event Paris-Roubaix is an epic event due to the many strips of cobble stones (Pavés or Kasseien) that are very hard to navigate, and are physically very demanding for both the athlete and his/her bike)
Also, interestingly, one can find porphyry cobble stones from the Belgian quarries in, for instance, the USA. Ships from the Americas that brought cargo into Antwerp or Zeebrugge harbour usually took on porphyry cobble stones as ballast for the return journey when they had to return too empty (an empty or partly empty ship is too unstable, especially in rough seas....). Obviously these porphyry cobble stones were unloaded back in America, and found their use in roads in the New World.
Nowadays the main product of the porphyry quarries is gravel for projects where hardness, durability and resistance of the gravel is of great importance.
Porphyry from the area has been used for instance in the huge Delta Works in Holland, in the "Chunnel" (the tunnel under the channel linking France to the United Kingdom), in many airport runways and for the high-speed TGV rail-road tracks (they exclusively use porphyry).

Today four porphyry quarries are still being operated (from east to west): Quenast, Bierghes, and the side by side located quarries of Lessines and Deux-Acren.
All four of them are large scale and modern open-cast mining operations.

It is not allowed to enter the quarry without permission of the quarry management.




Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Porphyry quarry, Bierghes, Rebecq, Walloon Brabant Province, Belgium

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Harjo Neutkens collection
Anatase
Formula: TiO2
Reference: Harjo Neutkens collection
'Apatite'
Colour: Colourless and different shades of pink
Reference: Harjo Neutkens collection
Bornite
Formula: Cu5FeS4
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Brookite
Formula: TiO2
Reference: Harjo Neutkens collection
Calcite
Formula: CaCO3
Reference: Harjo Neutkens collection
Chalcopyrite
Formula: CuFeS2
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
'Chlorite Group'
Habit: As a green coating on quartz crystals or as massive, powdery masses in quartz.
Colour: green to black
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Dolomite
Formula: CaMg(CO3)2
Reference: Harjo Neutkens collection
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Galena
Formula: PbS
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Hematite
Formula: Fe2O3
Reference: Harjo Neutkens collection
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Marcasite
Formula: FeS2
Reference: Harjo Neutkens collection
'Porphyry'
Reference: From locality description
Pyrite
Formula: FeS2
Habit: Cubic crystals.
Colour: metallic yellow
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Quartz
Formula: SiO2
Habit: Massive aggregations filling vugs in porphyry rock, occasionally clear rock crystals are present in cavities.
Colour: transparent
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Quartz var: Rock Crystal
Formula: SiO2
Habit: Muzo habit and faden quartz are very common.
Reference: Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
Rutile
Formula: TiO2
Description: Inclusions in apatite crystals from alpine-type clefts. Not to be mistaken with acicular marcasite crystals occurring on the same pieces.
Reference: Harjo Neutkens collection
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Harjo Neutkens collection

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Bornite'2.BA.15Cu5FeS4
'Chalcopyrite'2.CB.10aCuFeS2
'Galena'2.CD.10PbS
'Marcasite'2.EB.10aFeS2
'Pyrite'2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
'Anatase'4.DD.05TiO2
'Brookite'4.DD.10TiO2
'Hematite'4.CB.05Fe2O3
'Quartz'4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Dolomite'5.AB.10CaMg(CO3)2
'Malachite'5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
'Epidote'9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Chlorite Group'-
'Porphyry'-
Tourmaline-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Anatase4.4.4.1TiO2
Brookite4.4.5.1TiO2
Rutile4.4.1.1TiO2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Chlorite Group'-
'Porphyry'-
Quartz
var: Rock Crystal
-SiO2
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H MalachiteCu2(CO3)(OH)2
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
OOxygen
O AlbiteNa(AlSi3O8)
O AnataseTiO2
O BrookiteTiO2
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O HematiteFe2O3
O MalachiteCu2(CO3)(OH)2
O QuartzSiO2
O Quartz (var: Rock Crystal)SiO2
O RutileTiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg DolomiteCaMg(CO3)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si QuartzSiO2
Si Quartz (var: Rock Crystal)SiO2
SSulfur
S BorniteCu5FeS4
S ChalcopyriteCuFeS2
S GalenaPbS
S MarcasiteFeS2
S PyriteFeS2
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
TiTitanium
Ti AnataseTiO2
Ti BrookiteTiO2
Ti RutileTiO2
FeIron
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe HematiteFe2O3
Fe MarcasiteFeS2
Fe PyriteFeS2
CuCopper
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
PbLead
Pb GalenaPbS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Cenozoic
0 - 66 Ma



ID: 3185279
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 66 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Silurian - Ordovician
419.2 - 485.4 Ma



ID: 3140270
Ordovician claystone

Age: Paleozoic (419.2 - 485.4 Ma)

Lithology: Major:{claystone}, Minor{siltstone,rhyolite group}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
A. Demory, C. Heymans (2012): Le quartz de Bierghes, Rebecq, Brabant wallon, Belgique. Le Règne Mineral 106, 5-15 (in French, with English abstract).
H. Neutkens (2013): Quarz aus Belgien, die aktuellen Funde von 2010 bis 2012. Mineralien Welt 3/2013, 14-23.


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