McGill University campus, Mont Royal, Montréal, Québec, Canadai
| Regional Level Types | |
|---|---|
| McGill University campus | Occurrence |
| Mont Royal | Town |
| Montréal | City |
| Québec | Province |
| Canada | Country |
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Latitude & Longitude (WGS84):
45° 30' 15'' North , 73° 34' 37'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Montréal | 1,600,000 (2018) | 1.0km |
| Westmount | 20,494 (2010) | 2.9km |
| Notre-Dame-de-Grâce | 67,000 (2017) | 4.2km |
| Saint-Raymond | 9,273 (2018) | 4.8km |
| Longueuil | 229,330 (2016) | 5.5km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Montreal Gem and Mineral Club | Montreal, Quebec | 3km |
The McGill University campus is on the eastern lower slope of Mont Royal. It is the type locality for dawsonite. The type occurrence of dawsonite was a trachytic (feldspathic) dike cutting Trenton limestone "near the western end of McGill College [now McGill University]" adjacent to the Arts Building.
The type dawsonite specimens were collected between 1855 and 1874 by Principal John William Dawson. Dawsonite had been collected before 1843 by Dr. A. F. Holmes from the "foundation of McGill College" but was misidentified as natrolite. Dawson recognized his material as a likely new species and referred it to Professor B.J. Harrington, who published the first description of the new mineral in 1875.
Dawsonite occurred in veinlets in joints, formed on cooling of a feldspathic dike, and in clusters. Associated minerals include calcite, kaolinite, cubes of pyrite and fluorite.
What was probably the same dike from which Dawson collected his specimens was encountered in September and October 1963 during construction of the Leacock Building. Another dike containing dawsonite was encountered in 2001 and 2002 during construction of the Penfield 740 Building and the Trottier Building. This dike is about 200 meters north-northwest of the 1963 dike and has a very different strike. Notably, it produced much better specimens of dawsonite.
Dawsonite was also found at the McTavish Reservoir site and in the Mount Royal Tunnel which runs underneath the campus.
The type dawsonite specimens were collected between 1855 and 1874 by Principal John William Dawson. Dawsonite had been collected before 1843 by Dr. A. F. Holmes from the "foundation of McGill College" but was misidentified as natrolite. Dawson recognized his material as a likely new species and referred it to Professor B.J. Harrington, who published the first description of the new mineral in 1875.
Dawsonite occurred in veinlets in joints, formed on cooling of a feldspathic dike, and in clusters. Associated minerals include calcite, kaolinite, cubes of pyrite and fluorite.
What was probably the same dike from which Dawson collected his specimens was encountered in September and October 1963 during construction of the Leacock Building. Another dike containing dawsonite was encountered in 2001 and 2002 during construction of the Penfield 740 Building and the Trottier Building. This dike is about 200 meters north-northwest of the 1963 dike and has a very different strike. Notably, it produced much better specimens of dawsonite.
Dawsonite was also found at the McTavish Reservoir site and in the Mount Royal Tunnel which runs underneath the campus.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Calcite Formula: CaCO3 References: |
| ⓘ Dawsonite (TL) Formula: NaAlCO3(OH)2 Type Locality: References: |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Fluorite Formula: CaF2 References: |
| ⓘ Galena Formula: PbS References: |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Pyrite Formula: FeS2 References: |
| ⓘ 'Wad' |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Dawsonite (TL) | 5.BB.10 | NaAlCO3(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Wad' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Dawsonite | NaAlCO3(OH)2 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dawsonite | NaAlCO3(OH)2 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Dawsonite | NaAlCO3(OH)2 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Dawsonite | NaAlCO3(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Dawsonite | NaAlCO3(OH)2 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Fluorite | CaF2 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Pyrite | FeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Grenville OrogenyOrogenic Belt
- Quebec basinBasin
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McGill University campus, Mont Royal, Montréal, Québec, Canada