Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Rockland Co., New York, USA

Oldest recorded age at locality: 1190
Youngest recorded age at locality: 1104

mindat Locality ID: 23843
mindat URL: http://www.mindat.org/loc-23843.html

Tectonic Settings:

Total number of sublocalities beneath "Rockland Co., New York, USA": 35
Total number of bottom-level sublocalities: 22

Number of Child Localities: 9
Child Localities:
Bear Mountain State Park
Clarkstown
Harriman State Park
Haverstraw
Nyack
Orangetown
Stony Point (Woodbury)
Suffern
Town Of Ramapo

Latitude: 41°9'39"N
Longitude: 74°'51"W
Decimal Degree (lat, lon): 41.160833333333,-74.014166666667

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Allophane	Amphibole	Analcime	Baryte	Brucite	Calcite	Chalcopyrite	Clay	Clinozoisite	Corundum
Epidote	Feldspar	Gadolinite	Garnet	Gypsum	Harmotome	Humite	Malachite	Mica	Natrolite
Nickeline	None	Not in a structural group	Pectolite	Pentlandite	Prehnite	Pyrite	Pyrosmalite	Pyroxene	Quartz
Scapolite	Smectite-vermiculite	Spinel	Staurolite	Stilpnomelane	Talc	Thomsonite	Titanite	Vesuvianite	Wurtzite
Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al B Ba C Ca Cd Cu F Fe H K Mg Na Ni O S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Amphibole Analcime Baryte Brucite Calcite Chalcopyrite Clay Clinozoisite Corundum
Epidote Feldspar Gadolinite Garnet Gypsum Harmotome Humite Malachite Mica Natrolite
Nickeline None Not in a structural group Pectolite Pentlandite Prehnite Pyrite Pyrosmalite Pyroxene Quartz
Scapolite Smectite-vermiculite Spinel Staurolite Stilpnomelane Talc Thomsonite Titanite Vesuvianite Wurtzite
Zircon

53 IMA Minerals at location:

Actinolite ()*	Almandine ()*	Analcime ()*	Anhydrite ()*	Augite ()*
Baryte ()*	Brucite ()*	Calcite ()*	Celadonite ()*	Chalcopyrite ()*
Chondrodite ()*	Chrysocolla ()*	Cuprite ()*	Datolite ()*	Djurleite ()*
Dolomite ()*	Epidote ()*	Graphite ()*	Greenockite ()*	Gypsum ()*
Harmotome ()*	Hastingsite ()*	Hedenbergite ()*	Hematite ()*	Ilmenite ()*
Laumontite ()*	Magnesio-hastingsite ()*	Magnesio-hornblende ()*	Magnetite ()*	Malachite ()*
Meionite ()*	Microcline ()*	Natrolite ()*	Orthoclase ()*	Pectolite ()*
Pentlandite ()*	Phlogopite ()*	Prehnite ()*	Pyrite ()*	Pyrosmalite-(Fe) ()*
Pyrrhotite ()*	Quartz ()*	Sillimanite ()*	Spinel ()*	Staurolite ()*
Stilpnomelane ()*	Talc ()*	Thomsonite-Ca ()*	Titanite ()*	Vermiculite ()*
Vesuvianite ()*	Zircon ()*	Zoisite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			2	248535,248542	3419
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1190	1104	1	248513	2353
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O			1	248547	1627
Anhydrite ()*	Not in a structural group	Ca(SO₄)			1	248547	1588
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆			1	248535	2060
Baryte ()*	Baryte	Ba(SO₄)			1	248537	11547
Brucite ()*	Brucite	Mg(OH)₂			1	248532	462
Calcite ()*	Calcite	Ca(CO₃)	1190	1104	10	248515,248518,248526,248529,248532,248534,248535,248537,248539,248547	27770
Celadonite ()*	Mica Clay	KMgFe³⁺Si₄O₁₀(OH)₂			2	248539,248547	309
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			3	248523,248534,248537	27198
Chondrodite ()*	Humite	Mg₅(SiO₄)₂F₂			1	248535	285
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			2	248518,248547	3531
Cuprite ()*	Not in a structural group	Cu₂O			1	248543	2970
Datolite ()*	Gadolinite	CaB(SiO₄)(OH)			4	248532,248534,248539,248547	498
Djurleite ()*	None	Cu₃₁S₁₆			1	248518	300
Dolomite ()*	None	CaMg(CO₃)₂			1	248537	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			3	248535,248542,248546	8173
Graphite ()*	None	C			2	248514,248537	2812
Greenockite ()*	Wurtzite	CdS			1	248526	717
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	248523	6890
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O			1	248526	290
Hastingsite ()*	Amphibole	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂			2	248524,248542	209
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	1190	1104	1	248515	741
Hematite ()*	Corundum	Fe₂O₃			2	248520,248529	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	248535	5433
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O			1	248539	1271
Magnesio-hastingsite ()*	Amphibole	NaCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂			1	248524	80
Magnesio-hornblende ()*	Amphibole	Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂			1	248514	238
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			10	248520,248521,248524,248525,248535,248536,248541,248542,248544,248546	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	248543	12537
Meionite ()*	Scapolite	Ca₄Al₆Si₆O₂₄(CO₃)	1190	1104	1	248515	176
Microcline ()*	Feldspar	K(AlSi₃O₈)	1190	1104	2	248513,248524	4924
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O			3	248529,248534,248547	1236
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			1	248535	2349
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)			6	248526,248529,248530,248532,248539,248547	363
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈			1	248542	1512
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂			3	248514,248525,248542	2273
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			4	248529,248530,248532,248547	1898
Pyrite ()*	Pyrite	FeS₂			6	248520,248521,248523,248524,248535,248537	39462
Pyrosmalite-(Fe) ()*	Pyrosmalite Clay	Fe²⁺₈Si₆O₁₅(OH)₁₀			1	248542	38
Pyrrhotite ()*	Nickeline	Fe₇S₈			4	248523,248524,248525,248535	9056
Quartz ()*	Quartz	SiO₂	1190	1104	9	248513,248520,248521,248523,248524,248525,248537,248539,248547	61156
Sillimanite ()*	Not in a structural group	Al₂SiO₅			1	248535	1516
Spinel ()*	Spinel	MgAl₂O₄			2	248535,248546	1934
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)			1	248535	978
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O			1	248547	456
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	248546	3337
Thomsonite-Ca ()*	Thomsonite	NaCa₂(Al₅Si₅)O₂₀·6H₂O			2	248532,248534	452
Titanite ()*	Titanite	CaTi(SiO₄)O	1190	1104	2	248515,248535	4899
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O			1	248523	652
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			1	248532	1395
Zircon ()*	Zircon	Zr(SiO₄)			3	248524,248535,248543	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)			1	248535	1025

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
USGS-Rb-Sr-05878	1190	1104	1147±43	Rb-Sr	age of metamorphic crystallization	whole rock	175656	Iona Island, Bear Mountain State Park, Rockland Co., New York, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05879	1190	1104	1147±43	Rb-Sr	age of metamorphic crystallization	whole rock	175656	Iona Island, Bear Mountain State Park, Rockland Co., New York, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-05880	1190	1104	1147±43	Rb-Sr	age of metamorphic crystallization	whole rock	175656	Iona Island, Bear Mountain State Park, Rockland Co., New York, USA	USGS-Rb-Sr	USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...