Garnet prospect, Middle Haddam, East Hampton, Middlesex County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Garnet prospect | Prospect |
| Middle Haddam | Village |
| East Hampton | Town |
| Middlesex County | County |
| Connecticut | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 33' 7'' North , 72° 32' 53'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| East Hampton | 2,691 (2017) | 4.6km |
| Lake Pocotopaug | 3,436 (2017) | 6.0km |
| Higganum | 1,698 (2017) | 6.2km |
| Portland | 5,862 (2017) | 8.0km |
| Middletown | 46,756 (2017) | 8.6km |
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 | 22km |
| Bristol Gem & Mineral Club | Bristol, Connecticut | 36km |
| New Haven Mineral Club | New Haven, Connecticut | 42km |
This is one of these small places that seems to get more mention than it warrants.
The first one is by Taylor (1824):
Garnets, in mica-slate, at Middle Haddam.
They are found about eighty rods east of the Landing. They occur in vast abundance, and are from one to two inches diameter.
They are found about eighty rods east of the Landing. They occur in vast abundance, and are from one to two inches diameter.
Schairer (1931):
There is an old garnet mine located on the side of the hill just north of an old road running east from Middle Haddam.
Schooner (1958) mentions it briefly in a few places:
A brown mineral, closely resembling anthophyllite, is abundant in gneiss at the old garnet mine in Middle Haddam...
Large reddish [staurolite] crystals, unfortunately rough and of very poor quality, can be found in the ledges near the old garnet mine in Middle Haddam....
Last worked in 19th Century (?).
Large reddish [staurolite] crystals, unfortunately rough and of very poor quality, can be found in the ledges near the old garnet mine in Middle Haddam....
Last worked in 19th Century (?).
A resident and collector has described it as beside the road and not much more than a small prospect pit. Taylor's directions place it in a depression on the south side of Schoolhouse Road with no rock now exposed. Area is residential private property. The garnet is almost certainly the species almandine, as that is by far the most common schist-hosted garnet in Connecticut.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ✪ Almandine Formula: Fe2+3Al2(SiO4)3 Description: Not tested, but species probably almandine, as most schist-hosted garnets in Connecticut have proven to be. Crystals to 1-2 inches. |
| ⓘ Cummingtonite Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2 Description: Could be the brown mineral Schooner (1958) says looks like anthophyllite. References: |
| ⓘ Staurolite Formula: Fe2+2Al9Si4O23(OH) Colour: reddish |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| ⓘ | Staurolite | 9.AF.30 | Fe2+2Al9Si4O23(OH) |
| ⓘ | Cummingtonite | 9.DE.05 | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Cummingtonite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| H | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| O | Oxygen | |
| O | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| O | ⓘ Cummingtonite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| O | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Mg | Magnesium | |
| Mg | ⓘ Cummingtonite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Al | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Si | Silicon | |
| Si | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Si | ⓘ Cummingtonite | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| Si | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Fe | Iron | |
| Fe | ⓘ Almandine | Fe32+Al2(SiO4)3 |
| Fe | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Ganderia DomainDomain
- GranderiaPassive Margin
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Garnet prospect, Middle Haddam, East Hampton, Middlesex County, Connecticut, USA