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:
Middletown Township, Delaware Co., Pennsylvania, USA

mindat Locality ID: 156390
mindat URL: http://www.mindat.org/loc-156390.html

Tectonic Settings:

Total number of sublocalities beneath "Middletown Township, Delaware Co., Pennsylvania, USA": 12
Total number of bottom-level sublocalities: 8

Number of Child Localities: 7
Child Localities:
Black Horse
Elwyn
Glen Riddle
Lenni
Lima
Sharpless' Quarry (Sharpless Quarry)
Williamson Trade School

Latitude: 39°54'25"N
Longitude: 75°25'27"W
Decimal Degree (lat, lon): 39.906944444444,-75.424166666667

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.

Amphibole	Beryl	Brookite	Calcite	Clay	Columbite	Corundum	Diaspore	Feldspar	Garnet
Harmotome	Mica	Natrolite	Nolanite	None	Not in a structural group	Olivine	Pyroxene	Quartz	Serpentine
Smectite-vermiculite	Spinel	Staurolite	Talc

Actinolite ()*	Albite ()*	Almandine ()*	Anorthite ()*	Anthophyllite ()*
Beryl ()*	Brookite ()*	Calcite ()*	Chromite ()*	Chrysotile ()*
Columbite-(Mn) ()*	Corundum ()*	Enstatite ()*	Ferrihydrite ()*	Forsterite ()*
Gahnite ()*	Goethite ()*	Harmotome ()*	Kyanite ()*	Laumontite ()*
Magnesite ()*	Magnetite ()*	Margarite ()*	Microcline ()*	Muscovite ()*
Natrolite ()*	Orthoclase ()*	Quartz ()*	Samarskite-(Y) ()*	Sillimanite ()*
Staurolite ()*	Talc ()*	Tremolite ()*	Vermiculite ()*

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 Ba Be C Ca Cr Fe H K Mg Mn Na Nb O Si Ti Y Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Beryl Brookite Calcite Clay Columbite Corundum Diaspore Feldspar Garnet
Harmotome Mica Natrolite Nolanite None Not in a structural group Olivine Pyroxene Quartz Serpentine
Smectite-vermiculite Spinel Staurolite Talc

34 IMA Minerals at location:

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)	3	262839,262840,262843	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	4	262839,262840,262841,262843	2353
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	1	262843	1036
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	2	262839,262840	718
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	3	262839,262840,262846	4286
Brookite ()*	Brookite	TiO₂	1	262837	700
Calcite ()*	Calcite	Ca(CO₃)	1	262843	27770
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	4	262837,262839,262840,262847	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	262839	951
Columbite-(Mn) ()*	Columbite	Mn²⁺Nb₂O₆	1	262839	289
Corundum ()*	Corundum	Al₂O₃	4	262839,262840,262842,262845	1797
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	2	262839,262840	944
Ferrihydrite ()*	Nolanite	Fe³⁺₁₀O₁₄(OH)₂	1	262845	86
Forsterite ()*	Olivine	Mg₂(SiO₄)	1	262847	1188
Gahnite ()*	Spinel	ZnAl₂O₄	1	262846	445
Goethite ()*	Diaspore	FeO(OH)	1	262845	7437
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O	1	262842	290
Kyanite ()*	Not in a structural group	Al₂OSiO₄	1	262839	1507
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1	262843	1271
Magnesite ()*	Calcite	Mg(CO₃)	1	262840	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	3	262839,262846,262847	14899
Margarite ()*	Mica Clay	CaAl₂Si₂Al₂O₁₀(OH)₂	1	262839	168
Microcline ()*	Feldspar	K(AlSi₃O₈)	5	262839,262840,262841,262843,262846	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2	262839,262846	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	1	262843	1236
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	5	262839,262840,262841,262842,262843	2349
Quartz ()*	Quartz	SiO₂	7	262837,262839,262840,262841,262843,262845,262846	61156
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈	2	262839,262840	353
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	262839	1516
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	1	262839	978
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	2	262839,262840	3337
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	3	262839,262840,262843	2562
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	3	262839,262840,262841	652

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...