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:
Delaware Co., Pennsylvania, USA

mindat Locality ID: 16896
mindat URL: http://www.mindat.org/loc-16896.html

Tectonic Settings:

Total number of sublocalities beneath "Delaware Co., Pennsylvania, USA": 70
Total number of bottom-level sublocalities: 37

Number of Child Localities: 21
Child Localities:
Ashton Township
Bethel Township
Chadds Ford Township (Birmingham Township)
Chester Township
Concord Township
Darby (Darby Borough)
Edgemont Township
Haverford Township
Linwood
Lower Chichester Township
Media (Borough Of Media)
Middletown Township
Nether Providence Township
Newtown Township
Ridley Township
Springfield Township
Swarthmore (Borough Of Swarthmore)
Thornbury Township
Trainer
Upper Chichester Township
Upper Providence Township

Latitude: 39°55'5"N
Longitude: 75°23'37"W
Decimal Degree (lat, lon): 39.918055555556,-75.393611111111

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	Amorphous	Amphibole	Apatite	Autunite	Axinite	Beryl	Bismutite	Brookite	Calcite
Chalcopyrite	Clay	Clinozoisite	Columbite	Corundum	Diaspore	Epidote	Feldspar	Fluorite	Garnet
Harmotome	Meta-autunite	Mica	Molybdenite	Natrolite	Nolanite	None	Not in a structural group	Olivine	Phosphuranylite
Pyrite	Pyroxene	Quartz	Rutile	Sepiolite	Serpentine	Smectite-vermiculite	Spinel	Staurolite	Stibnite
Talc	Thomsonite	Titanite	Tourmaline	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 Be Bi C Ca Cr Cu F Fe H K Mg Mn Mo Na Nb O P Pb S Si Ti U Y Zn Zr

Elements from minerals reported directly at this locality: H Mg Mo Na O S Si

Structural Groups for minerals in this locality:
Allophane Amorphous Amphibole Apatite Autunite Axinite Beryl Bismutite Brookite Calcite
Chalcopyrite Clay Clinozoisite Columbite Corundum Diaspore Epidote Feldspar Fluorite Garnet
Harmotome Meta-autunite Mica Molybdenite Natrolite Nolanite None Not in a structural group Olivine Phosphuranylite
Pyrite Pyroxene Quartz Rutile Sepiolite Serpentine Smectite-vermiculite Spinel Staurolite Stibnite
Talc Thomsonite Titanite Tourmaline Zircon

70 IMA Minerals at location:

Actinolite ()*	Albite ()*	Allophane ()*	Almandine ()*	Anorthite ()*
Anthophyllite ()*	Autunite ()*	Axinite-(Fe) ()*	Axinite-(Mn) ()*	Beryl ()*
Bismuthinite ()*	Bismutite ()*	Brookite ()*	Calcite ()*	Chalcopyrite ()*
Chromite ()*	Chrysocolla ()*	Chrysotile ()*	Columbite-(Mn) ()*	Corundum ()*
Diopside ()*	Enstatite ()*	Epidote ()*	Ferrihydrite ()*	Ferrimolybdite ()*
Fluorapatite ()*	Forsterite ()*	Gahnite ()*	Goethite ()*	Grossular ()*
Harmotome ()*	Ilmenite ()*	Kyanite ()*	Laumontite ()*	Magnesite ()*
Magnetite ()*	Margarite ()*	Meta-autunite ()*	Microcline ()*	Mirabilite ()*
Molybdenite ()*	Molybdite ()*	Muscovite ()*	Natrolite ()*	Opal ()*
Orthoclase ()*	Phosphuranylite ()*	Pyrite ()*	Quartz ()*	Rutile ()*
Samarskite-(Y) ()*	Saponite ()*	Schorl ()*	Scolecite ()*	Sepiolite ()*
Siderite ()*	Sillimanite ()*	Spessartine ()*	Staurolite ()*	Talc ()*
Thomsonite-Ca ()*	Titanite ()*	Torbernite ()*	Tremolite ()*	Uraninite ()*
Uranophane-α ()*	Vandendriesscheite ()*	Vermiculite ()*	Zircon ()*	Zoisite ()*

Mineral name	Structural Groups	IMA Formula	# 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	4	262839,262840,262843,262847	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	7	262819,262839,262840,262843,262855,262862,262875	8803
Allophane ()*	Allophane	Al₂O₃(SiO₂)_1.3-2.0·2.5-3.0H₂O	2	262812,262862	470
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	16	262812,262818,262819,262839,262840,262841,262843,262855,262858,262860,262862,262866,262869,262871,262873,262877	2353
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	1	262843	1036
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	3	262825,262839,262840	718
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	1	262863	1272
Axinite-(Fe) ()*	Axinite	Ca₄Fe²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	1	262866	260
Axinite-(Mn) ()*	Axinite	Ca₄Mn²⁺₂Al₄[B₂Si₈O₃₀](OH)₂	1	262865	88
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	13	262819,262828,262829,262839,262840,262846,262854,262855,262856,262860,262862,262863,262866	4286
Bismuthinite ()*	Stibnite	Bi₂S₃	1	262862	1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)	1	262862	716
Brookite ()*	Brookite	TiO₂	1	262837	700
Calcite ()*	Calcite	Ca(CO₃)	4	262809,262843,262862,262869	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	262862	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	5	262837,262839,262840,262847,262876	3902
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	1	262862	3531
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	2	262839,262876	951
Columbite-(Mn) ()*	Columbite	Mn²⁺Nb₂O₆	1	262839	289
Corundum ()*	Corundum	Al₂O₃	4	262839,262840,262842,262845	1797
Diopside ()*	Pyroxene	CaMgSi₂O₆	2	262869,262871	4135
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	5	262821,262825,262839,262840,262876	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2	262862,262869	8173
Ferrihydrite ()*	Nolanite	Fe³⁺₁₀O₁₄(OH)₂	1	262845	86
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O	1	262817	345
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	2	262858,262863	2740
Forsterite ()*	Olivine	Mg₂(SiO₄)	2	262825,262847	1188
Gahnite ()*	Spinel	ZnAl₂O₄	1	262846	445
Goethite ()*	Diaspore	FeO(OH)	3	262845,262852,262877	7437
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	1	262855	1544
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O	1	262842	290
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2	262855,262862	5433
Kyanite ()*	Not in a structural group	Al₂OSiO₄	7	262812,262823,262839,262853,262856,262858,262871	1507
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1	262843	1271
Magnesite ()*	Calcite	Mg(CO₃)	1	262840	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	5	262839,262846,262847,262862,262871	14899
Margarite ()*	Mica Clay	CaAl₂Si₂Al₂O₁₀(OH)₂	1	262839	168
Meta-autunite ()*	Meta-autunite	Ca(UO₂)₂(PO₄)₂·6H₂O	2	262855,262862	388
Microcline ()*	Feldspar	K(AlSi₃O₈)	16	262818,262819,262839,262840,262841,262843,262846,262850,262855,262858,262860,262862,262866,262869,262877,262878	4924
Mirabilite ()*	None	Na₂(SO₄)·10H₂O	0		223
Molybdenite ()*	Molybdenite	MoS₂	1	262862	5800
Molybdite ()*	None	MoO₃	0		140
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	15	262812,262818,262839,262846,262850,262855,262856,262858,262860,262862,262863,262866,262869,262877,262878	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	3	262829,262843,262855	1236
Opal ()*	Amorphous	SiO₂·nH₂O	1	262862	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	7	262815,262839,262840,262841,262842,262843,262875	2349
Phosphuranylite ()*	Phosphuranylite	KCa(H₃O)₃(UO₂)₇(PO₄)₄O₄·8H₂O	2	262827,262866	182
Pyrite ()*	Pyrite	FeS₂	4	262809,262855,262856,262862	39462
Quartz ()*	Quartz	SiO₂	27	262809,262812,262815,262819,262823,262825,262834,262837,262839,262840,262841,262843,262845,262846,262850,262855,262858,262860,262862,262866,262869,262871,262873,262875,262876,262877,262878	61156
Rutile ()*	Rutile	TiO₂	1	262871	5614
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈	2	262839,262840	353
Saponite ()*	Clay Smectite-vermiculite	(Ca,Na)_0.3(Mg,Fe)₃(Si,Al)₄O₁₀(OH)₂·4H₂O	1	262855	301
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	6	262819,262828,262855,262863,262869,262873	2705
Scolecite ()*	Natrolite	Ca(Si₃Al₂)O₁₀·3H₂O	1	262829	390
Sepiolite ()*	Sepiolite Clay	Mg₄Si₆O₁₅(OH)₂·6H₂O	0		241
Siderite ()*	Calcite	Fe(CO₃)	1	262855	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅	3	262815,262839,262856	1516
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	6	262850,262855,262860,262862,262866,262878	1214
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	2	262839,262871	978
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	5	262812,262825,262839,262840,262876	3337
Thomsonite-Ca ()*	Thomsonite	NaCa₂(Al₅Si₅)O₂₀·6H₂O	1	262855	452
Titanite ()*	Titanite	CaTi(SiO₄)O	3	262855,262862,262869	4899
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O	1	262855	1059
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	4	262825,262839,262840,262843	2562
Uraninite ()*	Fluorite	UO₂	1	262862	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	1	262862	890
Vandendriesscheite ()*	None	Pb_1.6(UO₂)₁₀O₆(OH)₁₁·11H₂O	1	262866	52
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	3	262839,262840,262841	652
Zircon ()*	Zircon	Zr(SiO₄)	4	262815,262862,262869,262871	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	2	262855,262862	1025

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R040093	Castle Rock, Edgemont Township, Delaware Co., Pennsylvania, USA	https://rruff.info/R040093

All locality data graciously provided by mindat.org

All age data...