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Penfield Quarry (Oak Leaf Quarry), Portland, Middlesex County, Connecticut, USAi
Regional Level Types
Penfield Quarry (Oak Leaf Quarry)Quarry
Portland- not defined -
Middlesex CountyCounty
ConnecticutState
USACountry

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Latitude & Longitude (WGS84):
41° 35' 47'' North , 72° 34' 32'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Lake Pocotopaug3,436 (2017)5.4km
Cromwell13,750 (2017)5.8km
Portland5,862 (2017)6.0km
East Hampton2,691 (2017)6.5km
Middletown46,756 (2017)7.3km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Lapidary and Mineral Society of Central ConnecticutMeriden, Connecticut20km
Bristol Gem & Mineral ClubBristol, Connecticut32km
New Haven Mineral ClubNew Haven, Connecticut43km
Mindat Locality ID:
18304
Long-form identifier:
mindat:1:2:18304:1
GUID (UUID V4):
2cbc7d32-d5c2-48d6-b5ac-8748dd5b945a


An old feldspar quarry in a granite pegmatite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

β“˜ Annite
Formula: KFe2+3(AlSi3O10)(OH)2
β“˜ Beryl
Formula: Be3Al2(Si6O18)
β“˜ Columbite-(Fe)
Formula: Fe2+Nb2O6
Habit: tabular
Colour: black with blue iridescence
βœͺ Ishikawaite
Formula: U4+Fe2+Nb2O8
Habit: tabular
Colour: black with brown coating
Description: metamict crystals with obsidian-like conchoidal fracture
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Microcline
Formula: K(AlSi3O8)
Colour: pale brown
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Quartz
Formula: SiO2
Colour: smoky

Gallery:

U4+Fe2+Nb2O8β“˜ Ishikawaite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Quartz4.DA.05SiO2
β“˜Ishikawaite4.DB.25U4+Fe2+Nb2O8
β“˜Columbite-(Fe)4.DB.35Fe2+Nb2O6
Group 9 - Silicates
β“˜Beryl9.CJ.05Be3Al2(Si6O18)
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
β“˜Microcline9.FA.30K(AlSi3O8)

List of minerals for each chemical element

HHydrogen
Hβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Beβ“˜ BerylBe3Al2(Si6O18)
OOxygen
Oβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Oβ“˜ BerylBe3Al2(Si6O18)
Oβ“˜ Columbite-(Fe)Fe2+Nb2O6
Oβ“˜ IshikawaiteU4+Fe2+Nb2O8
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MicroclineK(AlSi3O8)
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
AlAluminium
Alβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Alβ“˜ BerylBe3Al2(Si6O18)
Alβ“˜ MicroclineK(AlSi3O8)
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Siβ“˜ BerylBe3Al2(Si6O18)
Siβ“˜ MicroclineK(AlSi3O8)
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
KPotassium
Kβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Kβ“˜ MicroclineK(AlSi3O8)
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Feβ“˜ AnniteKFe32+(AlSi3O10)(OH)2
Feβ“˜ Columbite-(Fe)Fe2+Nb2O6
Feβ“˜ IshikawaiteU4+Fe2+Nb2O8
Feβ“˜ MagnetiteFe2+Fe23+O4
NbNiobium
Nbβ“˜ Columbite-(Fe)Fe2+Nb2O6
Nbβ“˜ IshikawaiteU4+Fe2+Nb2O8
UUranium
Uβ“˜ IshikawaiteU4+Fe2+Nb2O8

Other Regions, Features and Areas containing this locality


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.

References

 
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