Long Hill quartz locality, Haddam, Middlesex County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Long Hill quartz locality | - not defined - |
| Haddam | - not defined - |
| Middlesex County | County |
| Connecticut | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 27' 14'' North , 72° 30' 25'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| East Haddam | 9,042 (2017) | 3.8km |
| Higganum | 1,698 (2017) | 6.4km |
| Moodus | 1,413 (2017) | 7.2km |
| Chester Center | 1,558 (2017) | 7.4km |
| Deep River Center | 2,484 (2017) | 9.8km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Lapidary and Mineral Society of Central Connecticut | Meriden, Connecticut | 27km |
| New Haven Mineral Club | New Haven, Connecticut | 39km |
| Bristol Gem & Mineral Club | Bristol, Connecticut | 44km |
Mindat Locality ID:
146431
Long-form identifier:
mindat:1:2:146431:6
GUID (UUID V4):
62f2c52e-92a2-4196-a401-44898ae8dedb
The west side of Long Hill is host to a quartz crystal deposit where a fault apparently cross-cuts the thin layer of quartzite shown there on the bedrock map of the Haddam quadrangle. These crystals are similar in habit to those found at West Stafford and Moosup, Connecticut, where Mesozoic faults have brecciated quartzite.
It was known as far back as 1825 because it appears on the sketch map by Porter (1825). Williams (1899 and circa 1945) described the locality and crystals accurately: "On the west side of Longhill Quartz crystals can be dug by the bushel.", "in size they are from an inch to ten inches in length often aggregated laterally into groups."
Davis (1901) states: "well defined crystals of large size, translucent, and slightly discolored by oxide of iron, are found loose in the soil. Many of the smaller crystals are doubly terminated and perfectly transparent.
Location is very approximate.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ✪ Quartz Formula: SiO2 Habit: elongated 6-sided prisms with rhombohedral terminations. Larger crystals tend to be subparallel aggregates with myraid small terminations along the prism faces surrounding one dominant central termination. Colour: clear to white |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Ganderia DomainDomain
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References
