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Mont Saint-Gregoire (Mont Johnson; Monoir), Le Haut-Richelieu RCM, Montérégie, Québec, Canadai
Regional Level Types
Mont Saint-Gregoire (Mont Johnson; Monoir)Mountain
Le Haut-Richelieu RCMRegional County Municipality
MontérégieAdministrative Region
QuébecProvince
CanadaCountry

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Latitude & Longitude (WGS84):
45° 21' 30'' North , 73° 9' 0'' West
Latitude & Longitude (decimal):
45.35833,-73.15000
GRN:
N31W37
Type:
Mountain
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Mont-Saint-Grégoire3,086 (2017)3.0km
Marieville5,600 (2016)8.4km
Saint-Jean-sur-Richelieu71,613 (2016)10.5km
Parc-Boutin1,127 (2019)11.4km
Rougemont1,183 (2016)11.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Montreal Gem and Mineral ClubMontreal, Quebec36km
Mindat Locality ID:
247481
Long-form identifier:
mindat:1:2:247481:9
GUID (UUID V4):
0


Mont Saint-Gregoire is the smallest of the Monteregian Hills intrusions, approximately 700 m in diameter at the base. It comprises of essexite and pulaskite and intrudes siltstones. A small quarry was operated in the early 1900s for ornamental stone. The age is estimated to be 111±6 Ma.
In most of the literature Mont (or Mount) Johnson is used.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


3 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘKaersutite9.DE.15NaCa2(Mg3AlTi4+)(Si6Al2)O22O2
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
OOxygen
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ Pyroxene GroupADSi2O6
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Naⓘ NephelineNa3K(Al4Si4O16)
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Alⓘ NephelineNa3K(Al4Si4O16)
SiSilicon
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ Pyroxene GroupADSi2O6
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ NephelineNa3K(Al4Si4O16)
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

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

Hunt, T.S. (1859) Report on the intrusive rocks in the vicinity of Montreal. In: Geological Survey of Canada Report for the year 1858. Geological Survey of Canada, Montreal 171-188.
Hunt, T.S. (1860) On some of the Igneous Rocks of Canada. American Journal of Science, 29, 282-284.
Hunt, T.S. (1863) Eruptive rocks. (Chapter XX) 643-669 in: Geology of Canada. edited by Logan, W.E. et al. Published by Geological Survey of Canada, Montreal. 983 pages.
ADAMS, F.D. (1903) The Monteregian Hills - a Canadian petrographical province. Journal of Geology, 11, 239-282.
ADAMS, F.D. (1913) The Monteregian Hills. International Geological Congress, Guide Book #3, 29-80. Geological Survey of Canada, Ottawa.
CURRIE, K.L. (1970) An hypothesis on the origin of alkaline rocks suggested by the tectonic setting of the Monteregian Hills. Canadian Mineralogist, 10, 411-420.
Philpotts, A.R. (1972) Monteregian Hills: Mounts Johnson and Rougemont. 24th International Geological Congress, Canada. Excursion guide B-14: 1-17.
CURRIE, K.L.(1976) The Alkaline Rocks of Canada. Geological Survey of Canada Bulletin 239.
Eby, G.N. (1979) Mount Johnson, Quebec - an example of silicate-liquid immiscibility? Geology, 7, 491-494.
Woolley, A. R. (1987) Alkaline Rocks and Carbonatites of the World. Part 1: North and South America.
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