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New England Materials quarry, Monroe, Fairfield County, Connecticut, USAi
Regional Level Types
New England Materials quarryQuarry
Monroe- not defined -
Fairfield CountyCounty
ConnecticutState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 21' 19'' North , 73° 14' 50'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Newtown1,967 (2017)8.0km
Easton7,625 (2017)12.1km
Trumbull36,018 (2017)13.1km
Shelton41,296 (2017)13.6km
Derby12,700 (2017)13.8km


A large, currently active (as of 2014) aggregates quarry working the Brookfield dioritic gneiss. Some common pegmatite is also present. Poorly mineralized in general, but it exposed some small hydrothermal veins that contain purple and green fluorite and quartz or massive orange stilbite.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Habit: capillary
Colour: dark green
Description: micro-crystalline needles and bundles in tiny cavities in albite and clinochlore matrix
Reference: Specimen observations
Albite
Formula: Na(AlSi3O8)
Description: rarely tiny crystals lining cavities in albite-rich matrix
Reference: Notes by Jeremy Zolan
Arsenopyrite
Formula: FeAsS
Reference: Mike Polletta and Jeremy Zolan field observation
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Notes by Jeremy Zolan
Calcite
Formula: CaCO3
Reference: Mike Polletta and Jeremy Zolan field observation
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Habit: micaceous aggregates
Colour: very dark green
Description: micro-crystal aggregates in small cavities in albite/clinochlore matrix
Reference: Specimen observations
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Habit: rectangular prisms
Colour: olive green
Description: nice micro-crystals in tiny voids/fracture in albite-rich matrix
Reference: Specimen observations
Fluorite
Formula: CaF2
Reference: Notes by Jeremy Zolan
'Heulandite subgroup'
Reference: Mike Polletta and Jeremy Zolan field observation
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Mike Polletta and Jeremy Zolan field observation
Microcline
Formula: K(AlSi3O8)
Reference: Notes by Jeremy Zolan
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Notes by Jeremy Zolan
Quartz
Formula: SiO2
Reference: Notes by Jeremy Zolan
'Stilbite subgroup'
Reference: Notes by Jeremy Zolan

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite9.FA.35Na(AlSi3O8)
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Heulandite subgroup'-
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Heulandite subgroup'-
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H MalachiteCu2(CO3)(OH)2
H ClinochloreMg5Al(AlSi3O10)(OH)8
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O MuscoviteKAl2(AlSi3O10)(OH)2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O MicroclineK(AlSi3O8)
O QuartzSiO2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O CalciteCaCO3
O MalachiteCu2(CO3)(OH)2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O AlbiteNa(AlSi3O8)
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F FluoriteCaF2
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al MicroclineK(AlSi3O8)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al AlbiteNa(AlSi3O8)
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si AlbiteNa(AlSi3O8)
SSulfur
S ArsenopyriteFeAsS
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K MicroclineK(AlSi3O8)
CaCalcium
Ca FluoriteCaF2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca CalciteCaCO3
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
FeIron
Fe ArsenopyriteFeAsS
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
CuCopper
Cu MalachiteCu2(CO3)(OH)2
AsArsenic
As ArsenopyriteFeAsS

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

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