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Terp Road pegmatite, Hog Hill, East Hampton (Chatham), Middlesex Co., Connecticut, USAi
Regional Level Types
Terp Road pegmatitePegmatite
Hog HillHill
East Hampton (Chatham)- not defined -
Middlesex Co.County
ConnecticutState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 33' 7'' North , 72° 31' 56'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
East Hampton2,691 (2017)3.6km
Lake Pocotopaug3,436 (2017)5.5km
Higganum1,698 (2017)6.4km
Moodus1,413 (2017)8.7km
Portland5,862 (2017)9.3km


There is a small cut on Terp Road through a pegmatite that may contain beryl. One local told of "green quartz" he found there, which is more likely beryl.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


3 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Beryl
Formula: Be3Al2(Si6O18)
Reference: Rowan M. Lytle Collection
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Rowan M. Lytle Collection
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Rowan M. Lytle Collection

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
Kaolinite-Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H KaoliniteAl2(Si2O5)(OH)4
H MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
OOxygen
O BerylBe3Al2(Si6O18)
O KaoliniteAl2(Si2O5)(OH)4
O MuscoviteKAl2(AlSi3O10)(OH)2
AlAluminium
Al BerylBe3Al2(Si6O18)
Al KaoliniteAl2(Si2O5)(OH)4
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si BerylBe3Al2(Si6O18)
Si KaoliniteAl2(Si2O5)(OH)4
Si MuscoviteKAl2(AlSi3O10)(OH)2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Rowan M. Lytle collection.

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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