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:
Allegheny Co., Pennsylvania, USA

mindat Locality ID: 51977
mindat URL: http://www.mindat.org/loc-51977.html

Tectonic Settings:

Total number of sublocalities beneath "Allegheny Co., Pennsylvania, USA": 16
Total number of bottom-level sublocalities: 10

Number of Child Localities: 9
Child Localities:
Abers Creek
Creighton
Glassmere
Neville Township
Pittsburgh
Sewickley (1)
Sewickley (2)
Springdale
Wittmer

Latitude: 40°22'59"N
Longitude: 80°'"W
Decimal Degree (lat, lon): 40.383055555556,-80

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.

Alunite	Amphibole	Aragonite	Baryte	Calcite	Chalcopyrite	Clay	Clinozoisite	Corundum	Epidote
Feldspar	Mica	None	Not in a structural group	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Sphalerite
Spinel	Titanite	Wurtzite	Zircon

Alunogen ()*	Anatase ()*	Aragonite ()*	Augite ()*	Baryte ()*
Calcite ()*	Chalcopyrite ()*	Enstatite ()*	Epidote ()*	Galena ()*
Ilmenite ()*	Jarosite ()*	Kyanite ()*	Magnetite ()*	Microcline ()*
Muscovite ()*	Orthoclase ()*	Pyrite ()*	Quartz ()*	Rutile ()*
Siderite ()*	Sillimanite ()*	Sphalerite ()*	Titanite ()*	Tremolite ()*
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 Ba C Ca Cu Fe H K Mg O Pb S Si Ti Zn Zr

Elements from minerals reported directly at this locality: Al C Ca H O Pb S

Structural Groups for minerals in this locality:
Alunite Amphibole Aragonite Baryte Calcite Chalcopyrite Clay Clinozoisite Corundum Epidote
Feldspar Mica None Not in a structural group Pyrite Pyroxene Quartz Rocksalt Rutile Sphalerite
Spinel Titanite Wurtzite Zircon

27 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O	0		272
Anatase ()*	Not in a structural group	TiO₂	1	262484	2162
Aragonite ()*	Aragonite	Ca(CO₃)	0		3250
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	2	262484,262486	2060
Baryte ()*	Baryte	Ba(SO₄)	2	262481,262484	11547
Calcite ()*	Calcite	Ca(CO₃)	4	262481,262484,262486,262492	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	262481	27198
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	1	262484	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2	262484,262486	8173
Galena ()*	Rocksalt	PbS	0		24243
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2	262484,262486	5433
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	1	262478	2228
Kyanite ()*	Not in a structural group	Al₂OSiO₄	2	262484,262486	1507
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2	262484,262486	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)	2	262484,262486	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2	262484,262486	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	2	262484,262486	2349
Pyrite ()*	Pyrite	FeS₂	3	262481,262484,262492	39462
Quartz ()*	Quartz	SiO₂	2	262484,262486	61156
Rutile ()*	Rutile	TiO₂	2	262484,262486	5614
Siderite ()*	Calcite	Fe(CO₃)	1	262492	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅	2	262484,262486	1516
Sphalerite ()*	Sphalerite	ZnS	2	262481,262492	21482
Titanite ()*	Titanite	CaTi(SiO₄)O	1	262484	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	262484	2562
Wurtzite ()*	Wurtzite	ZnS	7	262477,262479,262481,262489,262490,262491,262492	372
Zircon ()*	Zircon	Zr(SiO₄)	2	262484,262486	5251

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...