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Todt Hill Serpentinite, Staten Island (Richmond Co.), New York, USAi
Regional Level Types
Todt Hill Serpentinite- not defined -
Staten Island (Richmond Co.)Island
New YorkState
USACountry

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Key
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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 40° North , 74° West (est.)
Margin of Error:~13km
Köppen climate type:Cfa : Humid subtropical climate


An abandoned highway cut into Ordovician Serpentinite ejected from deep within the mantle and metamorphosed. The serpentinite is rich in magnesium and chromium accounting for the lack of plant life in the area. Collecting is welcome, as there are very fine mineral specimens to be found. Specimens of stichtite and Cr-bearing clinochlore were found in 2006.

See website for more info: http://3dparks.wr.usgs.gov/nyc/parks/loc7.htm

Regions containing this locality

North America PlateTectonic Plate
New York City, New York, USACity

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


16 valid minerals.

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:

Antigorite
Formula: Mg3(Si2O5)(OH)4
Reference: Collected by Steve Okulewicz
Aragonite
Formula: CaCO3
Reference: Collected by Steve Okulewicz
Artinite
Formula: Mg2(CO3)(OH)2 · 3H2O
Reference: Steve Okulewicz
Brucite
Formula: Mg(OH)2
Reference: Collected by Steve Okulewicz
Calcite
Formula: CaCO3
Reference: Collected by Steve Okulewicz
Chromite
Formula: Fe2+Cr3+2O4
Reference: Collected by Steve Okulewicz
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Collected by Steve Okulewicz
Clinochlore var: Chromian Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
Reference: Collected by Steve Okulewicz
'Deweylite'
Formula: Mg4Si3O10 · 6H2O ?
Reference: Collected by Steve Okulewicz
Enstatite
Formula: MgSiO3
Reference: Collected by Steve Okulewicz
Hydromagnesite
Formula: Mg5(CO3)4(OH)2 · 4H2O
Reference: Collected by Steve Okulewicz
Lizardite
Formula: Mg3(Si2O5)(OH)4
Reference: Collected by Steve Okulewicz
Magnesite
Formula: MgCO3
Reference: Collected by Steve Okulewicz
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Collected by Steve Okulewicz
Pyroaurite
Formula: Mg6Fe3+2(OH)16[CO3] · 4H2O
Reference: Collected by Steve Okulewicz
Stevensite
Formula: (Ca,Na)xMg3-x(Si4O10)(OH)2
Reference: Collected by Steve Okulewicz
Stichtite
Formula: Mg6Cr3+2(OH)16[CO3] · 4H2O
Reference: Collected by Steve Okulewicz
Talc
Formula: Mg3Si4O10(OH)2
Reference: Collected by Steve Okulewicz

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Brucite4.FE.05Mg(OH)2
Chromite4.BB.05Fe2+Cr3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Artinite5.DA.10Mg2(CO3)(OH)2 · 3H2O
Calcite5.AB.05CaCO3
Hydromagnesite5.DA.05Mg5(CO3)4(OH)2 · 4H2O
Magnesite5.AB.05MgCO3
Pyroaurite5.DA.50Mg6Fe3+2(OH)16[CO3] · 4H2O
Stichtite5.DA.50Mg6Cr3+2(OH)16[CO3] · 4H2O
Group 9 - Silicates
Antigorite9.ED.15Mg3(Si2O5)(OH)4
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
var: Chromian Clinochlore9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
Enstatite9.DA.05MgSiO3
Lizardite9.ED.15Mg3(Si2O5)(OH)4
Stevensite9.EC.45(Ca,Na)xMg3-x(Si4O10)(OH)2
Talc9.EC.05Mg3Si4O10(OH)2
Unclassified Minerals, Rocks, etc.
'Deweylite'-Mg4Si3O10 · 6H2O ?

List of minerals arranged by Dana 8th Edition classification

Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
X(OH)2
Brucite6.2.1.1Mg(OH)2
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
Magnesite14.1.1.2MgCO3
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Artinite16b.3.1.1Mg2(CO3)(OH)2 · 3H2O
Pyroaurite16b.6.2.3Mg6Fe3+2(OH)16[CO3] · 4H2O
Stichtite16b.6.2.2Mg6Cr3+2(OH)16[CO3] · 4H2O
Hydromagnesite16b.7.1.1Mg5(CO3)4(OH)2 · 4H2O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Enstatite65.1.2.1MgSiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Antigorite71.1.2a.1Mg3(Si2O5)(OH)4
Lizardite71.1.2b.2Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings with 2:1 clays
Stevensite71.3.1b.6(Ca,Na)xMg3-x(Si4O10)(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3
Clinochlore
var: Chromian Clinochlore
-Mg5(Al,Cr)2Si3O10(OH)8
'Deweylite'-Mg4Si3O10 · 6H2O ?

List of minerals for each chemical element

HHydrogen
H LizarditeMg3(Si2O5)(OH)4
H Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
H HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
H StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
H DeweyliteMg4Si3O10 · 6H2O ?
H Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
H AntigoriteMg3(Si2O5)(OH)4
H PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
H BruciteMg(OH)2
H TalcMg3Si4O10(OH)2
H ArtiniteMg2(CO3)(OH)2 · 3H2O
H ClinochloreMg5Al(AlSi3O10)(OH)8
CCarbon
C MagnesiteMgCO3
C HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
C AragoniteCaCO3
C CalciteCaCO3
C StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
C PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
C ArtiniteMg2(CO3)(OH)2 · 3H2O
OOxygen
O LizarditeMg3(Si2O5)(OH)4
O Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
O MagnesiteMgCO3
O HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
O AragoniteCaCO3
O CalciteCaCO3
O StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
O DeweyliteMg4Si3O10 · 6H2O ?
O Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
O ChromiteFe2+Cr23+O4
O MagnetiteFe2+Fe23+O4
O AntigoriteMg3(Si2O5)(OH)4
O EnstatiteMgSiO3
O PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
O BruciteMg(OH)2
O TalcMg3Si4O10(OH)2
O ArtiniteMg2(CO3)(OH)2 · 3H2O
O ClinochloreMg5Al(AlSi3O10)(OH)8
NaSodium
Na Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
MgMagnesium
Mg LizarditeMg3(Si2O5)(OH)4
Mg Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Mg MagnesiteMgCO3
Mg HydromagnesiteMg5(CO3)4(OH)2 · 4H2O
Mg StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
Mg DeweyliteMg4Si3O10 · 6H2O ?
Mg Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
Mg AntigoriteMg3(Si2O5)(OH)4
Mg EnstatiteMgSiO3
Mg PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O
Mg BruciteMg(OH)2
Mg TalcMg3Si4O10(OH)2
Mg ArtiniteMg2(CO3)(OH)2 · 3H2O
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Al Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Al ClinochloreMg5Al(AlSi3O10)(OH)8
SiSilicon
Si LizarditeMg3(Si2O5)(OH)4
Si Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Si DeweyliteMg4Si3O10 · 6H2O ?
Si Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
Si AntigoriteMg3(Si2O5)(OH)4
Si EnstatiteMgSiO3
Si TalcMg3Si4O10(OH)2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
CrChromium
Cr Clinochlore (var: Chromian Clinochlore)Mg5(Al,Cr)2Si3O10(OH)8
Cr StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4
Fe MagnetiteFe2+Fe23+O4
Fe PyroauriteMg6Fe23+(OH)16[CO3] · 4H2O

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