Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Stewart Hartshorn Quarry (Hartshorn Quarry), Millburn, Millburn, Essex County, New Jersey, USAi
Regional Level Types
Stewart Hartshorn Quarry (Hartshorn Quarry)Quarry
Millburn- not defined -
MillburnTownship
Essex CountyCounty
New JerseyState
USACountry

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Latitude & Longitude (WGS84):
40° 43' 0'' North , 74° 17' 59'' West
Latitude & Longitude (decimal):
40.71667,-74.30000
GeoHash:
G#: dr5ptk0ru
GRN:
N28W41
Type:
Quarry
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Springfield14,429 (2017)2.0km
Maplewood25,008 (2017)2.8km
Union56,771 (2017)3.8km
Short Hills13,165 (2017)4.1km
Kenilworth8,215 (2017)4.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
New Jersey Mineralogical Society, IncMountainside, New Jersey7km
Morris Museum Mineralogical SocietyMorristown, New Jersey18km
North Jersey Mineralogical Society, Inc.Paterson, New Jersey25km
New York Mineralogical ClubNew York, New York27km
New York Paleontological SocietyNYC, New York37km
Mindat Locality ID:
12937
Long-form identifier:
mindat:1:2:12937:1
GUID (UUID V4):
0


A traprock quarry in Watchung Basalt.

Manager's note - this may be one of the Houdaille Quarries:
https://www.mindat.org/loc-23583.html

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Rock Types Recorded

Note: 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:

ⓘ Albite var. Anorthoclase
Formula: (Na,K)AlSi3O8
ⓘ Calcite
Formula: CaCO3
ⓘ Datolite
Formula: CaB(SiO4)(OH)
ⓘ 'Heulandite Subgroup'
Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Pectolite
Formula: NaCa2Si3O8(OH)
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Stevensite
Formula: (Ca,Na)xMg3-x(Si4O10)(OH)2
ⓘ 'Stilbite Subgroup'
Formula: M6-7[Al8-9Si27-28O72] · nH2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘDatolite9.AJ.20CaB(SiO4)(OH)
ⓘPectolite9.DG.05NaCa2Si3O8(OH)
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘStevensite9.EC.45(Ca,Na)xMg3-x(Si4O10)(OH)2
ⓘAlbite
var. Anorthoclase		9.FA.35(Na,K)AlSi3O8
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
Unclassified
ⓘ'Heulandite Subgroup'-(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ DatoliteCaB(SiO4)(OH)
Hⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ PectoliteNaCa2Si3O8(OH)
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
BBoron
Bⓘ DatoliteCaB(SiO4)(OH)
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Oⓘ CalciteCaCO3
Oⓘ DatoliteCaB(SiO4)(OH)
Oⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ PectoliteNaCa2Si3O8(OH)
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
NaSodium
Naⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Naⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
Naⓘ PectoliteNaCa2Si3O8(OH)
Naⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
MgMagnesium
Mgⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
AlAluminium
Alⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Alⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Siⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Siⓘ DatoliteCaB(SiO4)(OH)
Siⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ PectoliteNaCa2Si3O8(OH)
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
Siⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
KPotassium
Kⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Kⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DatoliteCaB(SiO4)(OH)
Caⓘ Heulandite Subgroup(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Caⓘ PectoliteNaCa2Si3O8(OH)
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

The Mineral Industry of New Jersey for 1911: 27.
Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1). New York Mineralogical Clubp.93
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