Locality type: | Quarry |
Classification |
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Species: | Dawsonite |
Formula: | NaAlCO3(OH)2 |
Habit: | striated prisms, bladed cleavages |
Colour: | white to colourless |
Quality for species: | Excellent - world class for species or very significant. (!!) |
Significance: | Unusual or interesting association, relationships with other species, pseudomorphism etc. - see notes. |
Abundance at site: | Common |
Confirmation |
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Validity: | Believed Valid |
Associated Minerals Based on Photo Data: |
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Aegirine | ⓘ11 photos of Dawsonite associated with Aegirine at this locality. |
Gmelinite-Na | ⓘ11 photos of Dawsonite associated with Gmelinite-Na at this locality. |
Sodalite | ⓘ10 photos of Dawsonite associated with Sodalite at this locality. |
Catapleiite | ⓘ9 photos of Dawsonite associated with Catapleiite at this locality. |
Analcime | ⓘ6 photos of Dawsonite associated with Analcime at this locality. |
Microcline | ⓘ5 photos of Dawsonite associated with Microcline at this locality. |
Siderite | ⓘ5 photos of Dawsonite associated with Siderite at this locality. |
Polylithionite | ⓘ3 photos of Dawsonite associated with Polylithionite at this locality. |
Genthelvite | ⓘ3 photos of Dawsonite associated with Genthelvite at this locality. |
Natrolite | ⓘ3 photos of Dawsonite associated with Natrolite at this locality. |
Data |
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Mineral Data: | Click here to view Dawsonite data |
Locality Data: | Click here to view Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada |
Photo Gallery | View Gallery (28 photos) |
Data Identifiers |
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Mindat Occurrence Record ID: | 4384 |
Long-form Identifier: | 1:3:4384:7 |
GUID (UUID V4): | e8b93208-0446-4173-bc1d-932a682203b0 |
Nearest other occurrences of Dawsonite |
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14.7km (9.1 miles) | ⓘDulude Quarry (DJL - Carrière Mont-Bruno), Mont Saint Bruno, Saint-Bruno-de-Montarville, Longueuil TE, Montérégie, Québec, Canada |
19.5km (12.1 miles) | ⓘDemix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada |
31.3km (19.4 miles) | ⓘLafarge Montreal East quarry (Carrière Lafarge Montréal-Est; Francon Montréal-Est quarry; Canada Cement quarry), Montréal-Est, Montréal, Québec, Canada |
33.5km (20.8 miles) | ⓘRosemont quarry, Montréal, Québec, Canada |
33.6km (20.9 miles) | ⓘVille Marie Expressway (Autoroute 720), Montréal, Québec, Canada |
34.5km (21.5 miles) | ⓘMcGill University campus, Mont Royal, Montréal, Québec, Canada |
34.7km (21.6 miles) | ⓘMcTavish Reservoir (Rutherford Park; Lower Reservoir; Montreal Reservoir), Mont Royal, Montréal, Québec, Canada |
36.2km (22.5 miles) | ⓘFrancon quarry, Montréal, Québec, Canada |
37.1km (23.0 miles) | ⓘCorporation (Forsyth's) quarry, Mont Royal, Montréal, Québec, Canada |
37.9km (23.5 miles) | ⓘMiron Quarry, Montréal, Québec, Canada |
References |
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Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada