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Quartz from
Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA

Locality type:Quarry
Classification
Species:Quartz
Formula:SiO2
Comments:Mostly massive as part of the pegmatite matrix, but good pocket crystals are found at the outer edge of the quartz core zone near the amazonite crystals. Crystals to over 30 cm can form parts of the pocket walls, though most loose crystals are up to several cm. Can be doubly-terminated or complex scepters.
Habit:massive to euhedral prismatic or scepter overgrowths
Colour:smoky
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Extremely common
Confirmation
Validity:Believed Valid
References
References:
Seaman, David (1976): "Pegmatite Minerals of the World" in: Januzzi, Ronald E. and David Seaman.(1976): Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. (The Mineralogical Press: Danbury, Connecticut).; Harold Moritz field observations.
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
Nearest other occurrences of Quartz
0.3km (0.2 miles) A Long Hill quartz locality, Haddam, Middlesex Co., Connecticut, USA
0.5km (0.3 miles) B Long Hill (Turkey Hill) prospects, Haddam, Middlesex Co., Connecticut, USA
0.6km (0.4 miles) C Civilian Conservation Corps prospect (CCC prospect; Cook columbite prospect), Haddam, Middlesex Co., Connecticut, USA
0.7km (0.4 miles) D Civilian Conservation Corps Quarry (CCC Quarry; Smith Quarry; Turkey Hill quarry lot), Haddam, Middlesex Co., Connecticut, USA
0.7km (0.5 miles) E Nemo's Quarry, Haddam, Middlesex Co., Connecticut, USA
0.9km (0.5 miles) F Long Hill Quarry, Haddam, Middlesex Co., Connecticut, USA
1.1km (0.7 miles) G Arnold Quarry, Haddam, Middlesex Co., Connecticut, USA
1.2km (0.7 miles) H Gulf Quarry, Haddam, Middlesex Co., Connecticut, USA
1.5km (0.9 miles) I Beaver Meadow Road - State Route 9 Interchange, Haddam, Middlesex Co., Connecticut, USA
2.0km (1.3 miles) J Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA
2.2km (1.4 miles) K Timms Hill (Tim's Hill; Iolite Hill), Haddam, Middlesex Co., Connecticut, USA
2.7km (1.7 miles) L Haddam, Middlesex Co., Connecticut, USA
3.2km (2.0 miles) M Hill above the parsonage, Haddam, Middlesex Co., Connecticut, USA
3.4km (2.1 miles) N Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
3.5km (2.2 miles) O Chrysoberyl locality, Haddam, Middlesex Co., Connecticut, USA
3.8km (2.4 miles) P Tourmaline locality, Haddam, Middlesex Co., Connecticut, USA
4.1km (2.5 miles) Q Quarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
4.1km (2.6 miles) R Thulite locality (Walkley Hill), Haddam, Middlesex Co., Connecticut, USA
4.3km (2.7 miles) S State Route 9 and State Route 81 Interchange, Higganum, Haddam, Middlesex Co., Connecticut, USA
4.4km (2.7 miles) T Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
5.0km (3.1 miles) U Forest Ridge Road, Higganum, Haddam, Middlesex Co., Connecticut, USA
5.2km (3.2 miles) V Tidewater feldspar quarry, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
5.4km (3.3 miles) W Mt. Tom prospects, Moodus, East Haddam, Middlesex Co., Connecticut, USA
5.4km (3.4 miles) X Feldspar quarry, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
5.7km (3.6 miles) Y East Haddam, Middlesex Co., Connecticut, USA
5.8km (3.6 miles) Z Haddam Volunteer Fire Station, Higganum, Haddam, Middlesex Co., Connecticut, USA
6.2km (3.9 miles) 0 Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
6.4km (4.0 miles) 1 Unnamed magnetite occurrences, Higganum, Haddam, Middlesex Co., Connecticut, USA
6.7km (4.2 miles) 2 Unnamed amphibole-tourmaline-magnetite locality, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
7.1km (4.4 miles) 3 Anderson No. 2 Mica Mine, East Hampton (Chatham), Middlesex Co., Connecticut, USA
7.1km (4.4 miles) 4 Bailey prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
7.1km (4.4 miles) 5 Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USA
7.4km (4.6 miles) 6 Chester, Middlesex Co., Connecticut, USA
7.5km (4.7 miles) 7 Sillimanite type locality, Chester, Middlesex Co., Connecticut, USA
7.6km (4.7 miles) 8 Enegren Mica Mine (Power Mica Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USA
8.1km (5.0 miles) 9 Hurd State Park quarries, East Hampton (Chatham), Middlesex Co., Connecticut, USA
Mineral and/or Locality  
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