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Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA i
Regional Level Types
Riker Hill Hill
Livingston - not defined -
Livingston Township
Essex County County
New Jersey State
USA Country

Regional Level Types
Riker Hill	Hill
Livingston	- not defined -
Livingston	Township
Essex County	County
New Jersey	State
USA	Country

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Riker Hill

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Amygdaloidal Basalt

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Prehnite, etc.

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Riker Hill

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Amygdaloidal Basalt

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Prehnite, etc.

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Riker Hill

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Amygdaloidal Basalt

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA

Latitude & Longitude (WGS84):

40° 48' 8'' North , 74° 19' 36'' West

Latitude & Longitude (decimal):

G#: dr70heufp

Type:

Köppen climate type:

Cfa : Humid subtropical climate

Nearest Settlements:

Place	Population	Distance
Livingston	27,853 (2017)	1.2km
Northfield	8,070 (2017)	3.1km
Hanover	12,898 (2017)	3.4km
Roseland	5,876 (2017)	3.4km
East Hanover	12,194 (2017)	3.8km

Nearest Clubs:
Local clubs are the best way to get access to collecting localities

Club	Location	Distance
Morris Museum Mineralogical Society	Morristown, New Jersey	13km
New Jersey Mineralogical Society, Inc	Mountainside, New Jersey	15km
North Jersey Mineralogical Society, Inc.	Paterson, New Jersey	18km
New York Mineralogical Club	New York, New York	29km
New York Paleontological Society	NYC, New York	40km

Mindat Locality ID:

8361

Long-form identifier:

mindat:1:2:8361:7

GUID (UUID V4):

In the 1970's a housing development was built atop the summit of Riker Hill, a prominent outcrop of the Hook Mountain (Third Watchung) basalt. This locality was among the very few significant exposures of the mineral-bearing horizons within the Hook Mountain, the last and thinnest of the 3 flood basalt units in the Newark Basin.

Riker Hill is just far enough north to have suffered the grinding effects of Wisconsin glaciation. Consequently, much of the weathered material on the surface of the elevated ridge was removed. Relatively fresh basalt bedrock was at, or very near, the surface over much of the site making blasting necessary for the construction of foundations and utility trenches. Even though these excavations were shallow they produced good specimen material.

Mineralization occurred in amygdaloidal cavities in the basalt.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

14 valid minerals.

Detailed Mineral List:

ⓘ Babingtonite

Formula: Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Baryte

Formula: BaSO₄

References:

Pollack, R. (1977) Riker Hill, New Jersey -- An Active Collecting Area. Rocks & Minerals, 52:542.

ⓘ Calcite

Formula: CaCO₃

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Chrysocolla

Formula: Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Datolite

Formula: CaB(SiO₄)(OH)

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

Pollack, R. (1977) Riker Hill, New Jersey -- An Active Collecting Area. Rocks & Minerals, 52:542.

ⓘ Gypsum var. Selenite

Formula: CaSO₄ · 2H₂O

References:

Pollack, R. (1977) Riker Hill, New Jersey -- An Active Collecting Area. Rocks & Minerals, 52:542.

ⓘ Hematite

Formula: Fe₂O₃

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ 'Limonite'

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

References:

Pollack, R. (1977) Riker Hill, New Jersey -- An Active Collecting Area. Rocks & Minerals, 52:542.

ⓘ Pectolite

Formula: NaCa₂Si₃O₈(OH)

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

References:

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.89

ⓘ 'Pumpellyite Subgroup'

Formula: Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A

Description: the exact member of the pumpellyite group is not defined to date.

References:

Common knowledge among older local collectors

ⓘ Pyrite

Formula: FeS₂

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Quartz

Formula: SiO₂

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ Sphalerite

Formula: ZnS

References:

Rothstein, J. 1978. The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal 32:1124-35

ⓘ 'Stilbite Subgroup'

Formula: M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

References:

Pollack, R. (1977) Riker Hill, New Jersey -- An Active Collecting Area. Rocks & Minerals, 52:542.

ⓘ 'Thomsonite Subgroup'

References:

Pollack, R. (1977) Riker Hill, New Jersey -- An Active Collecting Area. Rocks & Minerals, 52:542.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	var. Selenite	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Datolite	9.AJ.20	CaB(SiO₄)(OH)
ⓘ	Pectolite	9.DG.05	NaCa₂Si₃O₈(OH)
ⓘ	Babingtonite	9.DK.05	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Chrysocolla	9.ED.20	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Unclassified
ⓘ	'Limonite'	-
ⓘ	'Pumpellyite Subgroup'	-	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
ⓘ	'Stilbite Subgroup'	-	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
ⓘ	'Thomsonite Subgroup'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Babingtonite	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
H	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
H	ⓘ Datolite	CaB(SiO₄)(OH)
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
H	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
H	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
B	Boron
B	ⓘ Datolite	CaB(SiO₄)(OH)
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	Oxygen
O	ⓘ Babingtonite	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
O	ⓘ Baryte	BaSO₄
O	ⓘ Calcite	CaCO₃
O	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
O	ⓘ Datolite	CaB(SiO₄)(OH)
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
O	ⓘ Quartz	SiO₂
O	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
O	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Na	Sodium
Na	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Al	Aluminium
Al	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Al	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Si	Silicon
Si	ⓘ Babingtonite	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
Si	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Si	ⓘ Datolite	CaB(SiO₄)(OH)
Si	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Si	ⓘ Quartz	SiO₂
Si	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
S	Sulfur
S	ⓘ Baryte	BaSO₄
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Ca	Calcium
Ca	ⓘ Babingtonite	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Datolite	CaB(SiO₄)(OH)
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Ca	ⓘ Gypsum var. Selenite	CaSO₄ · 2H₂O
Fe	Iron
Fe	ⓘ Babingtonite	Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Pyrite	FeS₂
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Ba	Barium
Ba	ⓘ Baryte	BaSO₄

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Laurentides DomainPassive Margin

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

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.89

Pollack, R. (1977) Riker Hill, New Jersey -- An Active Collecting Area. Rocks & Minerals: 52: 541-542.

Rothstein, J. (1978) The Minerals of Riker Hill, Livingston, New Jersey. Lapidary Journal: 32: 1124-1135.

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Riker Hill, Livingston, Livingston, Essex County, New Jersey, USAiRegional Level TypesRiker HillHill Livingston- not defined - LivingstonTownship Essex CountyCounty New JerseyState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

Select Mineral List Type

Mineral List

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Riker Hill, Livingston, Livingston, Essex County, New Jersey, USA i
Regional Level Types
Riker Hill Hill
Livingston - not defined -
Livingston Township
Essex County County
New Jersey State
USA Country