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, USA

Oldest recorded age at locality: 522
Youngest recorded age at locality: 368

mindat Locality ID: 14029
mindat URL: http://www.mindat.org/loc-14029.html

Tectonic Settings:

Total number of sublocalities beneath "Delaware, USA": 35
Total number of bottom-level sublocalities: 26

Number of Child Localities: 3
Child Localities:
Kent Co.
New Castle Co.
Sussex Co.

Latitude: 39°10'7"N
Longitude: 75°33'10"W
Decimal Degree (lat, lon): 39.168611111111,-75.552777777778

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	Apatite	Beryl	Calcite	Chalcopyrite	Clay	Corundum	Diaspore	Feldspar	Garnet
Kaolinite	Malachite	Marcasite	Mica	Natrolite	Nickeline	None	Not in a structural group	Pyrite	Pyroxene
Quartz	Serpentine	Spinel	Talc	Tourmaline	Vivianite

Actinolite ()*	Albite ()*	Anthophyllite ()*	Augite ()*	Beryl ()*
Bornite ()*	Calcite ()*	Chalcocite ()*	Chalcopyrite ()*	Chromite ()*
Chrysotile ()*	Corundum ()*	Diopside ()*	Enstatite ()*	Fluorapatite ()*
Goethite ()*	Grossular ()*	Hematite ()*	Hisingerite ()*	Kyanite ()*
Laumontite ()*	Magnesite ()*	Magnetite ()*	Malachite ()*	Marcasite ()*
Microcline ()*	Muscovite ()*	Natrolite ()*	Orthoclase ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Schorl ()*	Sillimanite ()*	Spessartine ()*
Talc ()*	Tremolite ()*	Vivianite ()*

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 Be C Ca Cr Cu F Fe H K Mg Mn Na O P S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Apatite Beryl Calcite Chalcopyrite Clay Corundum Diaspore Feldspar Garnet
Kaolinite Malachite Marcasite Mica Natrolite Nickeline None Not in a structural group Pyrite Pyroxene
Quartz Serpentine Spinel Talc Tourmaline Vivianite

38 IMA Minerals at location:

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			1	199388	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	522	368	1	199374	8803
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			1	199384	718
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆			1	199384	2060
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			3	199389,199392,199395	4286
Bornite ()*	None	Cu₅FeS₄			1	199391	5516
Calcite ()*	Calcite	Ca(CO₃)			2	199391,199394	27770
Chalcocite ()*	None	Cu₂S			1	199391	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			2	199391,199396	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄			1	199380	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	199392	951
Corundum ()*	Corundum	Al₂O₃			2	199374,199375	1797
Diopside ()*	Pyroxene	CaMgSi₂O₆			1	199396	4135
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			1	199379	944
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			3	199378,199391,199392	2740
Goethite ()*	Diaspore	FeO(OH)			1	199388	7437
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃			1	199392	1544
Hematite ()*	Corundum	Fe₂O₃			1	199388	14640
Hisingerite ()*	Kaolinite Clay	Fe₂Si₂O₅(OH)₄·2H₂O			1	199391	144
Kyanite ()*	Not in a structural group	Al₂OSiO₄			1	199392	1507
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O			1	199391	1271
Magnesite ()*	Calcite	Mg(CO₃)			2	199384,199392	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			3	199375,199384,199388	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	199391	12537
Marcasite ()*	Marcasite	FeS₂			1	199391	5674
Microcline ()*	Feldspar	K(AlSi₃O₈)			3	199374,199389,199395	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			5	199374,199375,199376,199389,199395	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O			1	199391	1236
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			1	199391	2349
Pyrite ()*	Pyrite	FeS₂			1	199391	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	199391	9056
Quartz ()*	Quartz	SiO₂			8	199376,199378,199388,199389,199391,199393,199394,199395	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			2	199389,199392	2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅			3	199376,199380,199392	1516
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃			1	199389	1214
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			2	199380,199384	3337
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			2	199379,199384	2562
Vivianite ()*	Vivianite	Fe²⁺₃(PO₄)₂·8H₂O			1	199383	636

6 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-02367	368	368	368	Rb-Sr		whole rock	212090	Interstate 95 Roadcut, New Castle Co., Delaware, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-02368	368	368	368	Rb-Sr		biotite	212090	Interstate 95 Roadcut, New Castle Co., Delaware, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-02372	398	398	398	Rb-Sr		biotite	212090	Interstate 95 Roadcut, New Castle Co., Delaware, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-02373	398	398	398	Rb-Sr		whole rock	212090	Interstate 95 Roadcut, New Castle Co., Delaware, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-02377	522	482	502±20	Rb-Sr	age of intrusion	whole rock	212090	Interstate 95 Roadcut, New Castle Co., Delaware, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-02378	522	482	502±20	Rb-Sr	age of intrusion	whole rock	212090	Interstate 95 Roadcut, New Castle Co., Delaware, USA	USGS-Rb-Sr	USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...