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Nike prospect, Portland, Middlesex County, Connecticut, USAi
Regional Level Types
Nike prospectProspect
Portland- not defined -
Middlesex CountyCounty
ConnecticutState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
41° 38' 23'' North , 72° 33' 54'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Lake Pocotopaug3,436 (2017)6.5km
Glastonbury Center7,387 (2017)7.4km
Terramuggus1,025 (2017)7.9km
Cromwell13,750 (2017)8.3km
East Hampton2,691 (2017)8.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Lapidary and Mineral Society of Central ConnecticutMeriden, Connecticut23km
Bristol Gem & Mineral ClubBristol, Connecticut32km
New Haven Mineral ClubNew Haven, Connecticut48km


A very small, hand worked prospect for beryl, started about 1960. What little is written about it describes it as near, for lack of any other landmark, the "rocket installations" or "Nike site" that was formerly located in the Meshomasic State Forest. In reality, it is along the power line/gas pipeline right-of-way about 1/2 mile NW of the (now decommissioned) Nike-Ajax missile launch site "HA-36 Portland". Schooner (1960) wrote about beryl, bismutite, and gahnite from this site:

In Meshomasic State Forest, near the Glastonbury-Portland line, in the vicinity of the rocket installations, the beryl, some of it of a fine green or bluish-green color, has been partially of faceting quality, and some notable examples have been seen...

Very recently, solid masses of green bismutite, up to at least an inch in diameter, have been noted at the beryl prospect near the rocket installation in Meshomasic State Forest; the pegmatite is almost identical with that of the Case Quarries, not too distant...

Recently, a few similar [gahnite] crystals, but very small, have been seen at a beryl prospect near the rocket installation in Meshomasic State Forest...


Schooner (circa 1990) mentions those finds again, calling it the Nike site in that publication.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Habit: massive
Colour: white
Description: Component of the host pegmatite.
Reference: Harold Moritz collection
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Former Ed Force collection
Beryl
Formula: Be3Al2(Si6O18)
Habit: hexagonal prisms
Colour: green to bluish-green
Reference: Schooner, Richard. (1961), The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Bismutite
Formula: (BiO)2CO3
Habit: massive pseudomorphs after bismuthinite
Colour: green
Description: Solid masses up to an inch.
Reference: Schooner, Richard. (1961), The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Gahnite
Formula: ZnAl2O4
Habit: octahedral
Colour: very dark green
Description: Grains to crystals to 11 mm.
Reference: Schooner, Richard. (1961), The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Microcline
Formula: K(AlSi3O8)
Habit: massive
Description: Component of the host pegmatite.
Reference: Harold Moritz collection
Quartz
Formula: SiO2
Habit: massive
Colour: gray
Description: Component of the host pegmatite.
Reference: Harold Moritz collection
Quartz var. Smoky Quartz
Formula: SiO2
Habit: massive
Colour: gray
Description: Component of the host pegmatite.
Reference: Harold Moritz collection
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Former Ed Force collection

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Gahnite4.BB.05ZnAl2O4
Quartz4.DA.05SiO2
var. Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Almandine9.AD.25Fe2+3Al2(SiO4)3
Beryl9.CJ.05Be3Al2(Si6O18)
Microcline9.FA.30K(AlSi3O8)
Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

List of minerals for each chemical element

HHydrogen
H SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C Bismutite(BiO)2CO3
OOxygen
O BerylBe3Al2(Si6O18)
O GahniteZnAl2O4
O Bismutite(BiO)2CO3
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O AlmandineFe32+Al2(SiO4)3
O AlbiteNa(AlSi3O8)
O Quartz var. Smoky QuartzSiO2
O MicroclineK(AlSi3O8)
O QuartzSiO2
NaSodium
Na SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
AlAluminium
Al BerylBe3Al2(Si6O18)
Al GahniteZnAl2O4
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Al AlmandineFe32+Al2(SiO4)3
Al AlbiteNa(AlSi3O8)
Al MicroclineK(AlSi3O8)
SiSilicon
Si BerylBe3Al2(Si6O18)
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si AlmandineFe32+Al2(SiO4)3
Si AlbiteNa(AlSi3O8)
Si Quartz var. Smoky QuartzSiO2
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
KPotassium
K MicroclineK(AlSi3O8)
FeIron
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Fe AlmandineFe32+Al2(SiO4)3
ZnZinc
Zn GahniteZnAl2O4
BiBismuth
Bi Bismutite(BiO)2CO3

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Schooner, Richard. (1961), The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Schooner, Richard. (circa 1990), Untitled manuscript on central Connecticut mineralogy.

External Links


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