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:
State Line Chromite District, Chester Co., Pennsylvania, USA

Oldest recorded age at locality: 510
Youngest recorded age at locality: 470

mindat Locality ID: 237305
mindat URL: http://www.mindat.org/loc-237305.html

Tectonic Settings:

Total number of sublocalities beneath "State Line Chromite District, Chester Co., Pennsylvania, USA": 10
Total number of bottom-level sublocalities: 7

Number of Child Localities: 2
Child Localities:
East Nottingham Township
West Nottingham Township

Latitude: 39°45'46"N
Longitude: 76°'58"W
Decimal Degree (lat, lon): 39.762777777778,-76.016111111111

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.

Amorphous	Amphibole	Calcite	Chlorite	Clay	Copper	Diaspore	Feldspar	Iron	Kaolinite
Löllingite	Melonite	Mica	Millerite	Nickeline	None	Pentlandite	Potarite	Pyrite	Quartz
Rocksalt	Sepiolite	Spinel	Stillwaterite	Talc	Tetradymite	Tourmaline	Ullmannite

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 As B Bi C Cr Cu Fe H Ir K Mg Na Ni O Os Pb Pd Pt Rh Ru S Sb Si Te

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Amphibole Calcite Chlorite Clay Copper Diaspore Feldspar Iron Kaolinite
Löllingite Melonite Mica Millerite Nickeline None Pentlandite Potarite Pyrite Quartz
Rocksalt Sepiolite Spinel Stillwaterite Talc Tetradymite Tourmaline Ullmannite

53 IMA Minerals at location:

Albite ()*	Anthophyllite ()*	Arsenopalladinite ()*	Bornite ()*	Braggite ()*
Chromite ()*	Clinochlore ()*	Erlichmanite ()*	Ferronickelplatinum ()*	Galena ()*
Godlevskite ()*	Goethite ()*	Heazlewoodite ()*	Hollingworthite ()*	Irarsite ()*
Iridium ()*	Iron ()*	Kaolinite ()*	Kotulskite ()*	Laurite ()*
Magnesite ()*	Majakite ()*	Malanite ()*	Maucherite ()*	Melonite ()*
Menshikovite ()*	Millerite ()*	Muscovite ()*	Naldrettite ()*	Nickeline ()*
Omeiite ()*	Palladoarsenide ()*	Platinum ()*	Polydymite ()*	Quartz ()*
Ruarsite ()*	Schorl ()*	Sepiolite ()*	Shandite ()*	Sobolevskite ()*
Sperrylite ()*	Stibiopalladinite ()*	Sudburyite ()*	Talc ()*	Tellurobismuthite ()*
Telluropalladinite ()*	Tetraferroplatinum ()*	Tulameenite ()*	Ungavaite ()*	Vincentite ()*
Vysotskite ()*	Wüstite ()*	Zaratite ()*

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
Albite ()*	Feldspar	Na(AlSi₃O₈)			1	262728	8803
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			1	262727	718
Arsenopalladinite ()*	Stillwaterite	Pd₈As₃	510	470	1	262726	31
Bornite ()*	None	Cu₅FeS₄	510	470	1	262726	5516
Braggite ()*	None	PdPt₃S₄	510	470	1	262726	101
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	510	470	3	262725,262732,262733	3902
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	510	470	1	262733	1756
Erlichmanite ()*	Pyrite	OsS₂	510	470	1	262726	110
Ferronickelplatinum ()*	Potarite	Pt₂FeNi	510	470	1	262726	13
Galena ()*	Rocksalt	PbS	510	470	1	262726	24243
Godlevskite ()*	Pentlandite	(Ni,Fe)₉S₈	510	470	1	262726	40
Goethite ()*	Diaspore	FeO(OH)			1	262725	7437
Heazlewoodite ()*	None	Ni₃S₂	510	470	1	262726	205
Hollingworthite ()*	Ullmannite	RhAsS	510	470	1	262726	119
Irarsite ()*	Pyrite	IrAsS	510	470	1	262726	154
Iridium ()*	Copper	Ir	510	470	1	262726	162
Iron ()*	Iron	Fe	510	470	1	262726	1089
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	262725	5591
Kotulskite ()*	Nickeline	Pd(Te,Bi)_2-x (x ≈ 0.4)	510	470	1	262726	116
Laurite ()*	Pyrite	RuS₂	510	470	1	262726	226
Magnesite ()*	Calcite	Mg(CO₃)	510	470	2	262728,262733	1487
Majakite ()*	None	PdNiAs	510	470	1	262726	22
Malanite ()*	Spinel	Cu¹⁺(Ir³⁺Pt⁴⁺)S₄	510	470	1	262726	35
Maucherite ()*	None	Ni₁₁As₈	510	470	1	262726	161
Melonite ()*	Melonite	NiTe₂	510	470	1	262726	207
Menshikovite ()*	None	Pd₃Ni₂As₃	510	470	1	262726	15
Millerite ()*	Millerite	NiS	510	470	1	262726	1066
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	262725	17380
Naldrettite ()*	None	Pd₂Sb	510	470	1	262726	11
Nickeline ()*	Nickeline	NiAs	510	470	1	262726	633
Omeiite ()*	Löllingite	OsAs₂	510	470	1	262726	7
Palladoarsenide ()*	None	Pd₂As	510	470	1	262726	37
Platinum ()*	Copper	Pt	510	470	1	262726	485
Polydymite ()*	Spinel	Ni²⁺Ni³⁺₂S₄	510	470	1	262726	131
Quartz ()*	Quartz	SiO₂	510	470	2	262725,262733	61156
Ruarsite ()*	None	RuAsS	510	470	1	262726	25
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			1	262725	2705
Sepiolite ()*	Sepiolite Clay	Mg₄Si₆O₁₅(OH)₂·6H₂O			1	262728	241
Shandite ()*	None	Ni₃Pb₂S₂	510	470	1	262726	14
Sobolevskite ()*	Nickeline	PdBi	510	470	1	262726	44
Sperrylite ()*	Pyrite	PtAs₂	510	470	1	262726	337
Stibiopalladinite ()*	None	Pd₅Sb₂	510	470	1	262726	75
Sudburyite ()*	Nickeline	PdSb	510	470	1	262726	46
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	510	470	1	262733	3337
Tellurobismuthite ()*	Tetradymite	Bi₂Te₃	510	470	1	262726	276
Telluropalladinite ()*	None	Pd₉Te₄	510	470	1	262726	15
Tetraferroplatinum ()*	Potarite	PtFe	510	470	1	262726	66
Tulameenite ()*	Potarite	Pt₂CuFe	510	470	1	262726	48
Ungavaite ()*	None	Pd₄Sb₃	510	470	1	262726	3
Vincentite ()*	None	Pd₃As	510	470	1	262726	17
Vysotskite ()*	None	PdS	510	470	1	262726	53
Wüstite ()*	Rocksalt	FeO	510	470	1	262726	74
Zaratite ()*	Amorphous	Ni₃(CO₃)(OH)₄·4H₂O			1	262732	56

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	podchrome-00491	510	470	Lower Ordovician (490±20 Ma)										Cr	237756	Hillside Chromite Mine, West Nottingham Township, State Line Chromite District, Chester Co., Pennsylvania, USA	Hillside	Moiser et al. (2012)		USGSSIR2012_5157
	podchrome-00492	510	470	Lower Ordovician (490±20 Ma)										Cr	21615	Scott Mine, Nottingham, West Nottingham Township, State Line Chromite District, Chester Co., Pennsylvania, USA	Scott	Moiser et al. (2012)		USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...