Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Fluorite from
Canadian National Railway tunnel, Mont Royal, Montréal, Québec, Canada


Locality type:Tunnel
Classification
Species:Fluorite
Formula:CaF2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fluorite data
Locality Data:Click here to view Canadian National Railway tunnel, Mont Royal, Montréal, Québec, Canada
Data Identifiers
Mindat Occurrence Record ID:697302
Long-form Identifier:1:3:697302:5
GUID (UUID V4):0
Nearest other occurrences of Fluorite
1.8km (1.1 miles) ⓘCorporation (Forsyth's) quarry, Mont Royal, Montréal, Québec, Canada
4.4km (2.8 miles) ⓘMcGill University campus, Mont Royal, Montréal, Québec, Canada
5.5km (3.4 miles) ⓘMiron Quarry, Montréal, Québec, Canada
5.6km (3.5 miles) ⓘVille Marie Expressway (Autoroute 720), Montréal, Québec, Canada
6.4km (4.0 miles) ⓘFrancon quarry, Montréal, Québec, Canada
11.8km (7.3 miles) ⓘLongueuil sill, Longueuil TE, Montérégie, Québec, Canada
14.1km (8.8 miles) ⓘLafarge Montreal East quarry (Carrière Lafarge Montréal-Est; Francon Montréal-Est quarry; Canada Cement quarry), Montréal-Est, Montréal, Québec, Canada
22.1km (13.7 miles) ⓘSaint-Philippe, Roussillon RCM, Montérégie, Québec, Canada
24.1km (15.0 miles) ⓘDulude Quarry (DJL - Carrière Mont-Bruno), Mont Saint Bruno, Saint-Bruno-de-Montarville, Longueuil TE, Montérégie, Québec, Canada
26.6km (16.5 miles) ⓘSaint-Philippe Quarry (DJL Quarry), Saint-Philippe, Roussillon RCM, Montérégie, Québec, Canada
References
Finley (1930)
 
and/or  
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