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Balls Hill Iron Mines, Franklin, Franklin Mining District, Sussex Co., New Jersey, USAi
Regional Level Types
Balls Hill Iron MinesGroup of Mines
Franklin- not defined -
Franklin Mining DistrictMining District
Sussex Co.County
New JerseyState
USACountry

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Key
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Latitude & Longitude (WGS84):
41° North , 74° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Locality type:
Group of Mines


Balls Hill runs SW-NE on the western side of Franklin borough. The Hill straddles the Precambrian Franklin marble and its contact with the Cork Hill gneiss. Rock outcrops along the hill, including residential areas not related to the Balls Hill group of iron mines.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

18 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrain Franklin marble.
Reference: Palache(1935):71.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Mike Pearce
'Amphibole Supergroup var: Uralite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Mike Pearce
Andradite
Formula: Ca3Fe3+2(SiO4)3
Arsenopyrite
Formula: FeAsS
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble. Palache (1935) describes this mineral as part of a mineral assemblage that almost certainly indicates its occurrence in a secondary vein.
Reference: Palache(1935):35.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Dan Weinrich
Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble. Palache (1935) describes this mineral as part of a mineral assemblage that almost certainly indicates its occurrence in a secondary vein. This supposition is further supported by the occurrence of axinite-Fe or axinite-Mn in veins, accompanied by similar associated minerals, at 7 other localities along the northwest margin of the Reading Prong highlands.
Reference: Palache(1935):100.
Calcite
Formula: CaCO3
Chalcopyrite
Formula: CuFeS2
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble.
Reference: Dunn(1995):Pt2:249.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Description: Palache (1935) describes this mineral as part of a mineral assemblage that almost certainly indicates its occurrence in a secondary vein.
Reference: Palache, C. (1935)
Fluoro-pargasite
Formula: {Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
Reference: Marco Cirrotti
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Van King
Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 9 localities in this region.
Molybdenite
Formula: MoS2
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble.
Reference: Palache(1935):26.
Paragonite ?
Formula: NaAl2(AlSi3O10)(OH)2
Description: The paragonite occurs on residential property in an outcrop of Precambrian Franklin marble as colorless to white brittle flakes with micaceous cleavage. For many years this occurrence was tentatively identified as "white margarite" with a question mark. Analytical data are lacking.
Reference: Visual identification by Chet Lemanski based on comparison with identically-appearing material now analytically confirmed from the Passaic pit, Sterling HIll, Ogdensburg, NJ.
Pyrite
Formula: FeS2
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble.
Reference: Dunn(1995):Pt2:249.
'Pyroxene Group'
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble.
Reference: Palache(1935):17.
Pyrrhotite
Formula: Fe7S8
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble.
Reference: Dunn(1995):Pt2:249.
Quartz
Formula: SiO2
Reference: Philip Betancourt
'Scapolite'
Reference: Palache(1935):17.
'Stilbite subgroup'
Reference: Van King
Titanite
Formula: CaTi(SiO4)O
Reference: Philip Betancourt
Zircon
Formula: Zr(SiO4)
Description: Occurs in conjunction with a magnetite orebody hosted in Cork Hill gneiss at its contact with Precambrian Franklin marble.
Reference: Palache(1935):17.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Chalcopyrite2.CB.10aCuFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Axinite-(Fe)9.BD.20Ca2Fe2+Al2BSi4O15OH
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fluoro-pargasite9.DE.15{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
Hedenbergite9.DA.15CaFe2+Si2O6
Paragonite ?9.EC.15NaAl2(AlSi3O10)(OH)2
Titanite9.AG.15CaTi(SiO4)O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Uralite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Pyroxene Group'-
'Scapolite'-
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

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
Arsenopyrite2.12.4.1FeAsS
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
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 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Axinite-(Fe)56.2.2.1Ca2Fe2+Al2BSi4O15OH
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 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Hedenbergite65.1.3a.2CaFe2+Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Paragonite ?71.2.2a.2NaAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Uralite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fluoro-pargasite-{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
'Pyroxene Group'-
'Scapolite'-
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H ParagoniteNaAl2(AlSi3O10)(OH)2
BBoron
B Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
CCarbon
C CalciteCaCO3
OOxygen
O HedenbergiteCaFe2+Si2O6
O MagnetiteFe2+Fe23+O4
O AndraditeCa3Fe23+(SiO4)3
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
O ZirconZr(SiO4)
O CalciteCaCO3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O QuartzSiO2
O TitaniteCaTi(SiO4)O
O Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
O ParagoniteNaAl2(AlSi3O10)(OH)2
FFluorine
F Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
NaSodium
Na Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
Na ParagoniteNaAl2(AlSi3O10)(OH)2
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
AlAluminium
Al Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
Al ParagoniteNaAl2(AlSi3O10)(OH)2
SiSilicon
Si HedenbergiteCaFe2+Si2O6
Si AndraditeCa3Fe23+(SiO4)3
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Si ZirconZr(SiO4)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si QuartzSiO2
Si TitaniteCaTi(SiO4)O
Si Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
Si ParagoniteNaAl2(AlSi3O10)(OH)2
SSulfur
S ArsenopyriteFeAsS
S MolybdeniteMoS2
S PyrrhotiteFe7S8
S ChalcopyriteCuFeS2
S PyriteFeS2
ClChlorine
Cl Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CaCalcium
Ca HedenbergiteCaFe2+Si2O6
Ca AndraditeCa3Fe23+(SiO4)3
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca TitaniteCaTi(SiO4)O
Ca Fluoro-pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(F,OH)2
TiTitanium
Ti Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti TitaniteCaTi(SiO4)O
FeIron
Fe HedenbergiteCaFe2+Si2O6
Fe MagnetiteFe2+Fe23+O4
Fe AndraditeCa3Fe23+(SiO4)3
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe ArsenopyriteFeAsS
Fe Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Fe PyrrhotiteFe7S8
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
CuCopper
Cu ChalcopyriteCuFeS2
AsArsenic
As ArsenopyriteFeAsS
ZrZirconium
Zr ZirconZr(SiO4)
MoMolybdenum
Mo MolybdeniteMoS2

Localities in this Region
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