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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Smoky Quartz from
McDowell's Quarry (Osborne and Marsellis Quarry), Upper Montclair, Montclair, Essex County, New Jersey, USA


Locality type:Quarry
Classification
Species:Quartz var: Smoky Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Stilbite Subgroup1
Calcite1
Data
Mineral Data:Click here to view Smoky Quartz data
Locality Data:Click here to view McDowell's Quarry (Osborne and Marsellis Quarry), Upper Montclair, Montclair, Essex County, New Jersey, USA
Data Identifiers
Mindat Occurrence Record ID:73240
Long-form Identifier:1:3:73240:0
GUID (UUID V4):0
Nearest other occurrences of Smoky Quartz
3.0km (1.8 miles) ⓘFrancisco Brothers Quarry, Great Notch, Little Falls Township, Passaic County, New Jersey, USA
3.0km (1.9 miles) ⓘHoudaille Quarry, Little Falls Township, Passaic County, New Jersey, USA
7.0km (4.3 miles) ⓘLower New Street Quarry, Paterson, Passaic County, New Jersey, USA
7.1km (4.4 miles) ⓘUpper New Street Quarry, Paterson, Passaic County, New Jersey, USA
8.8km (5.5 miles) ⓘMcKiernan & Bergin Quarry, Paterson, Passaic County, New Jersey, USA
10.1km (6.3 miles) ⓘBraen Quarry, Haledon, Passaic County, New Jersey, USA
11.1km (6.9 miles) ⓘProspect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
18.7km (11.6 miles) ⓘFederal Hill Granite Co. Quarry, Riverdale, Morris County, New Jersey, USA
23.3km (14.5 miles) ⓘWashington Heights, Manhattan (New York County), New York City, New York, USA
24.1km (15.0 miles) ⓘInwood Valley (Inwood), Manhattan (New York County), New York City, New York, USA
References
Rocks & Min.: 18:332-333 (1943), Drake, H.Y.
Peters, Joseph J. (1984) Triassic Traprock Minerals of New Jersey. Rocks & Minerals, 59 (4) 157-183 doi:10.1080/00357529.1984.11764472
 
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