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Silliman's Verd Antique Quarry, West Haven, New Haven Co., Connecticut, USAi
Regional Level Types
Silliman's Verd Antique QuarryQuarry
West Haven- not defined -
New Haven Co.County
ConnecticutState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 18' 44'' North , 72° 58' 42'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
New Haven130,322 (2017)4.2km
Woodbridge9,355 (2017)5.1km
West Haven54,927 (2017)5.3km
Orange13,956 (2017)5.5km
Ansonia18,854 (2017)9.2km


A small quarry in a serpentinite body near the north end of the northern Maltby Lake. It appears to have originally been dunnite caught up in continental collision and included within the Ordovician Malty Lake metamorphic rocks in the Orange-Milford Terrane. It was quarried in the 1810s by Benjamin Silliman, later of Yale College mineralogy fame, but the rocks did not stand up to weathering well. Before 1822, when West Haven was subdivided from New Haven and became part of Orange, the locality was referenced as being in New Haven.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Calcite
Formula: CaCO3
Habit: massive
Colour: white
Reference: Deasy, Ryan, Robert P. Wintsch, Bryan Wathen, Ryan McAlteer, David Bish and Romain Meyer. (2015), Tectonic Slivers of Oceanic Terranes(s)?: Sheeted Dikes and Sheared Gabbros in south-central Connecticut: Field Trip A1 in Guidebook for Field Trips in Connecticut and Massachusetts, 107th Meeting of the New England Intercollegiate Geological Conference, Wesleyan University, Middletown, Connecticut, Martha S. Gilmore and Phillip G. Resor editors.
Chromite
Formula: Fe2+Cr3+2O4
Habit: granular
Colour: black
Description: as cores in magnetite grains
Reference: Deasy, Ryan, Robert P. Wintsch, Bryan Wathen, Ryan McAlteer, David Bish and Romain Meyer. (2015), Tectonic Slivers of Oceanic Terranes(s)?: Sheeted Dikes and Sheared Gabbros in south-central Connecticut: Field Trip A1 in Guidebook for Field Trips in Connecticut and Massachusetts, 107th Meeting of the New England Intercollegiate Geological Conference, Wesleyan University, Middletown, Connecticut, Martha S. Gilmore and Phillip G. Resor editors.
Dolomite
Formula: CaMg(CO3)2
Habit: massive
Colour: tan
Reference: Deasy, Ryan, Robert P. Wintsch, Bryan Wathen, Ryan McAlteer, David Bish and Romain Meyer. (2015), Tectonic Slivers of Oceanic Terranes(s)?: Sheeted Dikes and Sheared Gabbros in south-central Connecticut: Field Trip A1 in Guidebook for Field Trips in Connecticut and Massachusetts, 107th Meeting of the New England Intercollegiate Geological Conference, Wesleyan University, Middletown, Connecticut, Martha S. Gilmore and Phillip G. Resor editors.
Magnetite
Formula: Fe2+Fe3+2O4
Habit: granular
Colour: black
Description: grains have cores composed of chromite
Reference: Deasy, Ryan, Robert P. Wintsch, Bryan Wathen, Ryan McAlteer, David Bish and Romain Meyer. (2015), Tectonic Slivers of Oceanic Terranes(s)?: Sheeted Dikes and Sheared Gabbros in south-central Connecticut: Field Trip A1 in Guidebook for Field Trips in Connecticut and Massachusetts, 107th Meeting of the New England Intercollegiate Geological Conference, Wesleyan University, Middletown, Connecticut, Martha S. Gilmore and Phillip G. Resor editors.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Colour: white, yellow, green
Description: massive, variegated
Reference: Deasy, Ryan, Robert P. Wintsch, Bryan Wathen, Ryan McAlteer, David Bish and Romain Meyer. (2015), Tectonic Slivers of Oceanic Terranes(s)?: Sheeted Dikes and Sheared Gabbros in south-central Connecticut: Field Trip A1 in Guidebook for Field Trips in Connecticut and Massachusetts, 107th Meeting of the New England Intercollegiate Geological Conference, Wesleyan University, Middletown, Connecticut, Martha S. Gilmore and Phillip G. Resor editors.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Unclassified Minerals, Rocks, etc.
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Unclassified Minerals, Mixtures, etc.
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
OOxygen
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O MagnetiteFe2+Fe23+O4
O ChromiteFe2+Cr23+O4
O CalciteCaCO3
O DolomiteCaMg(CO3)2
MgMagnesium
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg DolomiteCaMg(CO3)2
AlAluminium
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe MagnetiteFe2+Fe23+O4
Fe ChromiteFe2+Cr23+O4
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Deasy, Ryan, Robert P. Wintsch, Bryan Wathen, Ryan McAlteer, David Bish and Romain Meyer. (2015), Tectonic Slivers of Oceanic Terrane(s)?: Sheeted Dikes and Sheared Gabbros in south-central Connecticut: Field Trip A1 in Guidebook for Field Trips in Connecticut and Massachusetts, 107th Meeting of the New England Intercollegiate Geological Conference, Wesleyan University, Middletown, Connecticut, Martha S. Gilmore and Phillip G. Resor editors.


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