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
Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Quartz var: Smoky Quartz
Formula:SiO2
Comments:Some very black massive material is associated with meta-autunite.
Habit:massive
Colour:gray to black
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Feldspar Group1
Muscovite1
Data
Mineral Data:Click here to view Smoky Quartz data
Locality Data:Click here to view Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:657270
Long-form Identifier:1:3:657270:9
GUID (UUID V4):0
Nearest other occurrences of Smoky Quartz
0.9km (0.6 miles) ⓘAnderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
2.0km (1.2 miles) ⓘGillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
2.3km (1.4 miles) ⓘHaddam Volunteer Fire Station, Higganum, Haddam, Middlesex County, Connecticut, USA
2.4km (1.5 miles) ⓘForest Ridge Road, Higganum, Haddam, Middlesex County, Connecticut, USA
2.5km (1.5 miles) ⓘWorth and Selden Quarries (Victoria Quarry), East Hampton, Middlesex County, Connecticut, USA
2.6km (1.6 miles) ⓘQuarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
2.8km (1.7 miles) ⓘChrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
3.0km (1.8 miles) ⓘMagnetite occurrences, Higganum, Haddam, Middlesex County, Connecticut, USA
3.5km (2.2 miles) ⓘConnecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
4.2km (2.6 miles) ⓘJail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex County, Connecticut, USA
References
Ingerson, Earl (1938) Uraninite and associated minerals from Haddam Neck, Connecticut. American Mineralogist, 23 (4) 269-276
 
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