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Agstone Company Limestone Quarry, Danbury, Fairfield Co., Connecticut, USA

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Latitude & Longitude (WGS84): 41° 25' 40'' North , 73° 24' 44'' West
Latitude & Longitude (decimal): 41.42778,-73.41222
GeoHash:G#: dr7g9mwy7
Locality type:Quarry
Köppen climate type:Cfa : Humid subtropical climate


The quarry, in the Cambrian Stockbridge marble and long inactive, is located between U. S. Route 7 expressway and the New York, New Haven and Hartford Railroad tracks. It can be easily accessed from White Turkey Road extension near exit 11 from U. S. Route 7 and is immediately south of a commuter parking lot. A new rock cut along White Turkey Road extension was made just east of the quarry.

Januzzi (1959) states: "Collecting is not allowed but collection of minerals from this locality, including many fine calcite crystals may be seen at the office."

Januzzi (1994) mistakenly lists this locality in Brookfield.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


21 valid minerals. 1 erroneous literature entry.

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:

Almandine ?
Formula: Fe2+3Al2(SiO4)3
Description: Included in a list of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 185.
Aragonite
Formula: CaCO3
Description: "commonly reported" Ryerson (1972).
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Baryte
Formula: BaSO4
Description: Included in lists of minerals found, but with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 396.
'Biotite' ?
Description: Included in lists of minerals with no details.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Calcite
Formula: CaCO3
Habit: scalenohedral
Colour: white to pale yellow
Description: "The most well-known locality for large, well-formed calcite crystals occurs in the Beaverbrook District of Danbury, Connecticut." Januzzi (1959). Based on more specific references to other minerals, this statement refers to the Agstone Co. Quarry near the border with Brookfield. He also reports in 1959: "Collecting is not allowed but collection of minerals from this locality, including many fine calcite crystals may be seen at the office." Januzzi (1994) includes a photo of a a doubly-terminated, scalenohedral crystal dusted with tiny pyrites.
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Celestine
Formula: SrSO4
Colour: pale blue
Description: Included in lists of minerals without details, but Januzzi (1994) includes a photograph.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Chalcopyrite
Formula: CuFeS2
Description: "Chalcopyrite has also been found at the limestone quarry in the Beaverbrook District." Januzzi (1959).
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Description: Included in a lists of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
'Columbite-(Fe)-Columbite-(Mn) Series'
Habit: blocky, subhedral
Colour: black
Description: Januzzi (1994) includes a photo of small crystals in massive quartz, apparently from one of the small cross-cutting pegmatites.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 224-6.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Diopside
Formula: CaMgSi2O6
Description: Included in a lists of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Graphite
Formula: C
Description: Included in a lists of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 396.
Gypsum
Formula: CaSO4 · 2H2O
Habit: micro plumose aggregates
Colour: colorless but typically stained yellow
Description: Micro secondary crystals from the reaction of pyrite, calcite and water and "found as seams in limestone associated with calcite at the limestone quarry, Beaver Brook District, Danbury" Januzzi (1959). Schooner (1961) reports seeing a good example.
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Habit: micro plumose aggregates
Colour: colorless but typically stained yellow
Description: Micro secondary crystals from the reaction of pyrite, calcite and water and "found as seams in limestone associated with calcite at the limestone quarry, Beaver Brook District, Danbury" Januzzi (1959). Schooner (1961) reports seeing a good example.
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
'Hornblende'
Description: Included in a lists of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.;
'Limestone'
Reference: U.S. Geological Survey, (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'commodity:Limestone'
Reference: From USGS MRDS database
'Limonite'
Formula: (Fe,O,OH,H2O)
Description: Ubiquitous in Connecticut.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Microcline
Formula: K(AlSi3O8)
Description: Included in lists of minerals without details, but plausible in small pegmatites.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 396.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Januzzi, 1976. Mineral Localities of CT and Southeastern NY State, p.185
Palygorskite
Formula: (Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Description: TEM-EDS analysis showed a sample to be sepiolite.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Description: Included in lists of minerals without details, but plausible for the formation - a common accessory in marble.
Reference: Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Pyrite
Formula: FeS2
Habit: small crystals on calcite
Description: Included in a list of minerals with no details, but plausible for the formation - a common accessory in marble. Januzzi (1994) shows a photo of small crystals on a calcite crystal.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Pyrrhotite
Formula: Fe7S8
Description: Included in a list of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
Quartz
Formula: SiO2
Habit: fibrous, or as quartzoids
Colour: smoky
Description: Included in a list of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.
'Scapolite'
Habit: massive to prismatic
Colour: white to pale yellow-green
Fluorescence: peach (SW), yellow (MW), pink (LW)
Description: Mostly massive material, easy to miss but notable by its semi-fibrous texture on broken surface. Prismatic crystals rare.
Reference: Former Don Miller collection
Scheelite
Formula: Ca(WO4)
Description: "commonly reported" Ryerson (1972).
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
Habit: fibrous mats
Colour: white to pale gray-brown
Description: Found as a thin layer sandwiched between opposing calcite crystals. Analyzed in 2017 via TEM-EDS. Januzzi (1994) incorrectly called it palygorskite and includes a photo.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 185, 224-6.; Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Talc
Formula: Mg3Si4O10(OH)2
Description: Included in lists of minerals without details, but plausible for the formation.
Reference: Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut.; Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Titanite
Formula: CaTi(SiO4)O
Habit: tabular
Colour: brown
Reference: Former Don Miller collection
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Description: A common accessory in marble.
Reference: Schairer, John F. (1931): Minerals of Connecticut. State Geological and Natural History Survey of Connecticut Bulletin 51.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Graphite'1.CB.05aC
Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Pyrite'2.EB.05aFeS2
'Pyrrhotite'2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Aragonite'5.AB.15CaCO3
'Calcite'5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4
'Celestine'7.AD.35SrSO4
'Gypsum'7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
'Scheelite'7.GA.05Ca(WO4)
Group 9 - Silicates
'Almandine' ?9.AD.25Fe2+3Al2(SiO4)3
'Clinochlore'9.EC.55Mg5Al(AlSi3O10)(OH)8
'Diopside'9.DA.15CaMgSi2O6
'Microcline'9.FA.30K(AlSi3O8)
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
'Palygorskite' ?9.EE.20(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
'Phlogopite'9.EC.20KMg3(AlSi3O10)(OH)2
Sepiolite9.EE.25Mg4(Si6O15)(OH)2 · 6H2O
Talc9.EC.05Mg3Si4O10(OH)2
Titanite9.AG.15CaTi(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Biotite' ?-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Hornblende'-
'Limestone'-
'Limonite'-(Fe,O,OH,H2O)
'Scapolite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Celestine28.3.1.2SrSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine ?51.4.3a.2Fe2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Palygorskite ?74.3.1a.1(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Sepiolite74.3.1b.1Mg4(Si6O15)(OH)2 · 6H2O
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
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Aragonite-CaCO3
'Biotite' ?-
'Columbite-(Fe)-Columbite-(Mn) Series'-
Gypsum
var: Selenite
-CaSO4 · 2H2O
'Hornblende'-
'Limestone'-
'Limonite'-(Fe,O,OH,H2O)
'Scapolite'-

List of minerals for each chemical element

HHydrogen
H ClinochloreMg5Al(AlSi3O10)(OH)8
H GypsumCaSO4 · 2H2O
H Limonite(Fe,O,OH,H2O)
H MuscoviteKAl2(AlSi3O10)(OH)2
H Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Gypsum (var: Selenite)CaSO4 · 2H2O
H SepioliteMg4(Si6O15)(OH)2 · 6H2O
H TalcMg3Si4O10(OH)2
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
C GraphiteC
OOxygen
O AlmandineFe32+Al2(SiO4)3
O AragoniteCaCO3
O BaryteBaSO4
O CalciteCaCO3
O CelestineSrSO4
O ClinochloreMg5Al(AlSi3O10)(OH)8
O DiopsideCaMgSi2O6
O GypsumCaSO4 · 2H2O
O Limonite(Fe,O,OH,H2O)
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
O PhlogopiteKMg3(AlSi3O10)(OH)2
O QuartzSiO2
O ScheeliteCa(WO4)
O Gypsum (var: Selenite)CaSO4 · 2H2O
O SepioliteMg4(Si6O15)(OH)2 · 6H2O
O TalcMg3Si4O10(OH)2
O TitaniteCaTi(SiO4)O
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
MgMagnesium
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg DiopsideCaMgSi2O6
Mg Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SepioliteMg4(Si6O15)(OH)2 · 6H2O
Mg TalcMg3Si4O10(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al AlmandineFe32+Al2(SiO4)3
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Al PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Si AlmandineFe32+Al2(SiO4)3
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si DiopsideCaMgSi2O6
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si QuartzSiO2
Si SepioliteMg4(Si6O15)(OH)2 · 6H2O
Si TalcMg3Si4O10(OH)2
Si TitaniteCaTi(SiO4)O
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
SSulfur
S BaryteBaSO4
S CelestineSrSO4
S ChalcopyriteCuFeS2
S GypsumCaSO4 · 2H2O
S PyriteFeS2
S PyrrhotiteFe7S8
S Gypsum (var: Selenite)CaSO4 · 2H2O
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca GypsumCaSO4 · 2H2O
Ca ScheeliteCa(WO4)
Ca Gypsum (var: Selenite)CaSO4 · 2H2O
Ca TitaniteCaTi(SiO4)O
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti TitaniteCaTi(SiO4)O
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe ChalcopyriteCuFeS2
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
CuCopper
Cu ChalcopyriteCuFeS2
SrStrontium
Sr CelestineSrSO4
BaBarium
Ba BaryteBaSO4
WTungsten
W ScheeliteCa(WO4)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Ordovician - Neoproterozoic
443.8 - 1000 Ma



ID: 3190671
Precambrian-Phanerozoic sedimentary rocks

Age: Neoproterozoic to Ordovician (443.8 - 1000 Ma)

Lithology: Mudstone-carbonate-sandstone-conglomerate

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Middle Ordovician
458.4 - 470 Ma



ID: 2789977
Basal marble member [of Walloomsac Schist]

Age: Middle Ordovician (458.4 - 470 Ma)

Stratigraphic Name: Walloomsac Schist

Description: Dark-gray to white, massive to layered schistose or phyllitic calcite-phlogopite marble.

Comments: Part of Western Uplands; Proto-North American (Continental) Terrane - Carbonate Shelf

Lithology: Major:{marble}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Schairer, John F. (1931): Minerals of Connecticut. State Geological and Natural History Survey of Connecticut Bulletin 51.
Januzzi, Ronald E. (1959): The Minerals of Western Connecticut and Southeastern New York. The Mineralogical Press, Danbury, Connecticut.
Schooner, Richard. (1961): The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Ryerson, Kathleen H. (1972): Rock Hound's Guide to Connecticut. Pequot Press.
Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury, Connecticut: 185, 224-6.
Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 396.


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