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Cross Loop Road Cut (Site 1 of Phase 2), Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canadai
Regional Level Types
Cross Loop Road Cut (Site 1 of Phase 2)Road Cutting
Autoroute 5 roadcutsGroup of Road Cuttings
Autoroute 5 extensionRoad
Autoroute 5Road
ChelseaMunicipality
Les Collines-de-l'Outaouais RCMRegional County Municipality
OutaouaisAdministrative Region
QuébecProvince
CanadaCountry

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PhotosMapsSearch
01655100017364650294966.jpg
Site 1 of the Phase 2 extension

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
00703810017752685199967.jpg
Anhydrite

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
05025050017752684632448.jpg
Meionite, etc.

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
01655100017364650294966.jpg
Site 1 of the Phase 2 extension

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
07361840017704669756663.jpg
Anhydrite

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
00161650017752684592178.jpg
Meionite, etc.

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
01655100017364650294966.jpg
Site 1 of the Phase 2 extension

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
00703810017752685199967.jpg
Anhydrite

Cross Loop Road Cut, Autoroute 5 roadcuts, Autoroute 5 extension, Autoroute 5, Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
Latitude & Longitude (WGS84):
45° 35' 52'' North , 75° 54' 21'' West
Latitude & Longitude (decimal):
45.59778,-75.90611
GRN:
N31W39
Type:
Road Cutting - last checked 2025
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Wakefield2,000 (2016)9.6km
Cantley10,412 (2018)10.2km
Val-des-Monts9,539 (2016)19.5km
le Plateau15,000 (2015)20.6km
Gatineau242,124 (2016)20.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Eastern Ontario Natural History Society (EONS) / Ottawa Paleontology ClubOttawa, Ontario25km
Ottawa Lapsmith and Mineral ClubOttawa, Ontario25km
Mindat Locality ID:
450383
Long-form identifier:
mindat:1:2:450383:8
GUID (UUID V4):
0


This is the first road cut of the Phase 2 extension of Autoroute 5 when heading north (road cuts further south are part of the Phase 1 extension). It is immediately north of the southbound Exit 24. Although it is on the west side of the highway, specimens also came from the rock removed to make the road itself. An interesting variety of minerals were found here.In theory, specimens may still be found here, but most material was transported away to be used in building the highway itself.

A large zone of dark green clinopyroxene and jet black coarse grained amphibole outcrop is exposed in a road cut just north of Cross Loop Road. Blasting temporarily exposed large (up to 40 cm), though unsightly, euhedral diopside crystals in orange calcite.

This locality was thought to be a skarn, which it is not. Thin slice analysis has shown the marble intrusions to be silico-carbonatites.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


10 valid minerals.

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ Anhydrite
Formula: CaSO4
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ Calcite
Formula: CaCO3
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ 'Chabazite'
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: SEM-EDS
ⓘ Diopside
Formula: CaMgSi2O6
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification
ⓘ Grossular
Formula: Ca3Al2(SiO4)3
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ Meionite
Formula: Ca4Al6Si6O24CO3
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ Stilbite-Ca
Formula: NaCa4(Si27Al9)O72 · 28H2O
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS
ⓘ Titanite
Formula: CaTi(SiO4)O
References:
Jeffrey de Fourestier collectionIdentified by Jeffrey de Fourestier: Visual Identification, SEM-EDS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘDiopside9.DA.15CaMgSi2O6
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘMeionite9.FB.15Ca4Al6Si6O24CO3
ⓘChabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
ⓘStilbite-Ca9.GE.10NaCa4(Si27Al9)O72 · 28H2O
Unclassified
ⓘ'Chabazite'-

List of minerals for each chemical element

HHydrogen
Hⓘ Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Hⓘ Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
CCarbon
Cⓘ CalciteCaCO3
Cⓘ MeioniteCa4Al6Si6O24CO3
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnhydriteCaSO4
Oⓘ CalciteCaCO3
Oⓘ DiopsideCaMgSi2O6
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ GrossularCa3Al2(SiO4)3
Oⓘ MeioniteCa4Al6Si6O24CO3
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Oⓘ Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
FFluorine
Fⓘ FluorapatiteCa5(PO4)3F
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Naⓘ Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
MgMagnesium
Mgⓘ DiopsideCaMgSi2O6
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ GrossularCa3Al2(SiO4)3
Alⓘ MeioniteCa4Al6Si6O24CO3
Alⓘ Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Alⓘ Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ DiopsideCaMgSi2O6
Siⓘ GrossularCa3Al2(SiO4)3
Siⓘ MeioniteCa4Al6Si6O24CO3
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Siⓘ Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
SSulfur
Sⓘ AnhydriteCaSO4
KPotassium
Kⓘ Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ GrossularCa3Al2(SiO4)3
Caⓘ MeioniteCa4Al6Si6O24CO3
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Caⓘ Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
TiTitanium
Tiⓘ TitaniteCaTi(SiO4)O

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

[1]Belley, Philippe M., Picard, Michel, Rowe, Ralph, Poirier, Glenn (2016) Selected Finds from the Highway 5 Extension: Wakefield Area, Outaouais, Québec, Canada. Rocks & Minerals, 91 (6) 558-569 doi:10.1080/00357529.2016.1217473
[2]Martin, Robert F.; Schumann, Dirk; de Fourestier, Jeffrey; Fuchs, Sebastian (2023) Varicolored Marble in the Central Metasedimentary Belt, Grenville Supergroup. I. Circumstantial Evidence of Melting. The Canadian Journal of Mineralogy and Petrology, 61 (4). 675-731 doi:10.3749/2200042
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