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Flatrock Quarry (Flat Rock Quarry; Crystal Mall), Waterford, New London County, Connecticut, USAi
Regional Level Types
Flatrock Quarry (Flat Rock Quarry; Crystal Mall)Quarry (Built Over)
Waterford- not defined -
New London CountyCounty
ConnecticutState
USACountry

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Latitude & Longitude (WGS84):
41° 22' 31'' North , 72° 8' 35'' West
Latitude & Longitude (decimal):
41.37530,-72.14308
GeoHash:
G#: drkeqk5h8
GRN:
N28W39
Type:
Quarry (Built Over) - last checked 2019
KΓΆppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Central Waterford2,887 (2017)3.5km
Waterford19,281 (2017)3.8km
New London27,179 (2017)4.2km
Groton9,221 (2018)6.1km
Conning Towers-Nautilus Park8,834 (2017)6.3km
Mindat Locality ID:
11211
Long-form identifier:
mindat:1:2:11211:3
GUID (UUID V4):
648761cd-83f9-48ea-8cbc-022b7ad809cc


Originally a quarry in the Joshua Rock member of the New London Gneiss - an aegirine-augite granite orthogneiss. In the 1980s Crystal Mall was built at the site and resulted in the recovery of new specimens. The remaining exposure is a long rock cut along state Route 85.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


11 valid minerals. 2 erroneous literature entries.

Detailed Mineral List:

β“˜ Aegirine
Formula: NaFe3+Si2O6
Description: Reported as aegirine in the reference in 1911, but the mineral found here has since been redefined as aegrine-augite.
β“˜ Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Habit: anhedral to subhedral elongated prisms
Colour: black to dark green
Description: Reported by Dale and Gregory as aegirine in 1911, the mineral found here has since been redefined as aegirine-augite.
β“˜ 'Aeschynite'
Description: now equivalent to Davidite-(La)
β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
β“˜ Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Habit: tabular
Colour: black
Description: unstriated, slightly rounded tabular crystals up to 2 cm
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Davidite-(La)
Formula: La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Habit: subhedral
Colour: pitch black
Description: Small 1-2 cm obsidian-black subhedral crystals with red staining in adjacent rock.
β“˜ Ilmenite
Formula: Fe2+TiO3
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Microcline
Formula: K(AlSi3O8)
β“˜ 'Monazite'
Formula: REE(PO4)
β“˜ Orthoclase
Formula: K(AlSi3O8)
β“˜ Quartz
Formula: SiO2
β“˜ Titanite
Formula: CaTi(SiO4)O
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6β“˜ Aegirine-augite
La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38β“˜ Davidite-(La)
Fe2+Fe3+2O4β“˜ Magnetite
CaTi(SiO4)Oβ“˜ Titanite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Davidite-(La)4.CC.40La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
β“˜Quartz4.DA.05SiO2
Group 9 - Silicates
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Titanite9.AG.15CaTi(SiO4)O
β“˜Allanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
β“˜Aegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
β“˜Aegirine ?9.DA.25NaFe3+Si2O6
β“˜Microcline9.FA.30K(AlSi3O8)
β“˜Orthoclase9.FA.30K(AlSi3O8)
β“˜Albite9.FA.35Na(AlSi3O8)
β“˜var. Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Unclassified
β“˜'Aeschynite' ?-
β“˜'Monazite'-REE(PO4)
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Hβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oβ“˜ AegirineNaFe3+Si2O6
Oβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Oβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MicroclineK(AlSi3O8)
Oβ“˜ MonaziteREE(PO4)
Oβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Oβ“˜ OrthoclaseK(AlSi3O8)
Oβ“˜ QuartzSiO2
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ AegirineNaFe3+Si2O6
Naβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
MgMagnesium
Mgβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
AlAluminium
Alβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Alβ“˜ MicroclineK(AlSi3O8)
Alβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Alβ“˜ OrthoclaseK(AlSi3O8)
SiSilicon
Siβ“˜ AegirineNaFe3+Si2O6
Siβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Siβ“˜ MicroclineK(AlSi3O8)
Siβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Siβ“˜ OrthoclaseK(AlSi3O8)
Siβ“˜ QuartzSiO2
Siβ“˜ TitaniteCaTi(SiO4)O
Siβ“˜ ZirconZr(SiO4)
PPhosphorus
Pβ“˜ MonaziteREE(PO4)
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ MicroclineK(AlSi3O8)
Kβ“˜ OrthoclaseK(AlSi3O8)
CaCalcium
Caβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Caβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Caβ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Caβ“˜ TitaniteCaTi(SiO4)O
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ TitaniteCaTi(SiO4)O
VVanadium
Vβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
CrChromium
Crβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
FeIron
Feβ“˜ AegirineNaFe3+Si2O6
Feβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Feβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Feβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ MagnetiteFe2+Fe23+O4
YYttrium
Yβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)
LaLanthanum
Laβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
CeCerium
Ceβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
UUranium
Uβ“˜ Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38

Other Regions, Features and Areas containing this locality

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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

Dale, T. Nelson and Gregory Herbert E. (1911), The Granites of Connecticut. USGS Bulletin 484.
Schairer, John Frank (1931), The Minerals of Connecticut. State Geological and Natural History Survey Bulletin 51.
Kosnar, Richard A. (1979) What's New in Colorado Minerals?. The Mineralogical Record, 10 (6) 329-332
Woolley, A. R. (1987) Alkaline Rocks and Carbonatites of the World. Part 1: North and South America.
Jarnot, Bruce. (1989), Minerals New to the Portland Area Pegmatites of Central Connecticut, Abstract from the 16th Rochester Mineralogical Symposium in Rocks & Minerals: 64(6): 471.
Weber, Marcelle H. and Earle C. Sullivan. (1995), Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 407.
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