Tidewater feldspar quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Tidewater feldspar quarry | Quarry |
| Haddam Neck | - not defined - |
| Haddam | Town |
| Middlesex County | County |
| Connecticut | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 29' 54'' North , 72° 31' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Higganum | 1,698 (2017) | 2.8km |
| Moodus | 1,413 (2017) | 6.1km |
| East Haddam | 9,042 (2017) | 7.2km |
| East Hampton | 2,691 (2017) | 8.8km |
| Lake Pocotopaug | 3,436 (2017) | 11.1km |
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 | 24km |
| New Haven Mineral Club | New Haven, Connecticut | 40km |
| Bristol Gem & Mineral Club | Bristol, Connecticut | 40km |
A quarry in granite pegmatite on the west side of the riverside promontory known as Rock Landing because of the former ferry landing there. The Tidewater Feldspar Co. had a grinding mill here also, where it processed microcline from the adjacent pegmatite, but mostly from the Rock Landing Quarry, located about 4000 feet to the north of the mill. They may have prospected, or purchased, microcline from a few nearby, poorly documented pegmatite prospects such as on the Knudsen property, or the one at the SE tip of a promontory on the river about 1000 feet upstream of the mill.
The company was established in 1917 (Hartford Courant, 1917) and in 1920 "shipped several tons of ground spar to New York by motor trucks on the new state road" (Connecticut River Advertiser, 1920). The cost of labor must have reduced from a high during The Great War, which shut many quarries and mills down. The company had an advertisement in the 1928 Haddam Neck Fair program, and was given brief mention by Rice and Foye (1927): "This dike was once quarried for its feldspar, and a grinding mill was erected by the Tidewater Feldspar Company near the quarry." However, The Great Depression must have hit it hard because the property was put up for auction on Feb. 28, 1931 (Hartford Courant, 1931). It was apparently purchased by Mr. Worth of Middletown, who operated other feldspar quarries in nearby East Hampton. Reportedly new equipment was being installed at the mill by Sterling C. Gillette, who was reopening the nearby Gillette Quarry for feldspar mining, and feldspar was to be sent to Bon Ami Company in South Manchester, Conn. (The East Hampton News, 1932). Aside from some concrete foundation remnants, the mill is long gone and the site is now very overgrown. When it was removed is uncertain. None of its operations are mentioned in Cameron et al's very comprehensive WWII-era "Pegmatite Investigations 1942-45 New England", so it must have been gone before then. Perhaps it was a victim of flooding during the devastating Hurricane of 1938? Because it is not described in the earlier government feldspar mine surveys by Baston (1910) and Watts (1916) either, its existence was relegated to obscurity.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
5 valid minerals.
Detailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) References: |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Habit: Octahedral Colour: black Description: Microscopic crystals. References: |
| ⓘ Microcline Formula: K(AlSi3O8) References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 References: |
| ⓘ Quartz Formula: SiO2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Ganderia DomainDomain
- GranderiaPassive Margin
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Tidewater feldspar quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA