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:
Huron Co., Ohio, USA

Oldest recorded age at locality: 383
Youngest recorded age at locality: 359

mindat Locality ID: 55058
mindat URL: http://www.mindat.org/loc-55058.html

Tectonic Settings:

Total number of sublocalities beneath "Huron Co., Ohio, USA": 10
Total number of bottom-level sublocalities: 6

Number of Child Localities: 5
Child Localities:
Huron River
Milan
Monroeville
Monroeville (2)
Wakeman

Latitude: 41°16'14"N
Longitude: 82°39'36"W
Decimal Degree (lat, lon): 41.270555555556,-82.66

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.

Adranosite	Alum	Alunite	Aragonite	Arcanite	Baryte	Botryogen	Calcite	Copiapite	Epsomite
Fluorite	Gypsum	Halotrichite	Hexahydrite	Marcasite	Melanterite	Metavoltine	None	Not in a structural group	Oxalate
Picromerite	Pyracmonite	Pyrite	Quartz	Rocksalt	Sabieite	Sphalerite	Starkeyite	Sulphur	Voltaite

Adranosite-(Fe) ()*	Alunogen ()*	Ammoniomagnesiovoltaite ()*	Anhydrite ()*	Aragonite ()*
Baryte ()*	Botryogen ()*	Boussingaultite ()*	Calcite ()*	Carlsonite ()*
Clairite ()*	Copiapite ()*	Dolomite ()*	Epsomite ()*	Fluorite ()*
Galena ()*	Gypsum ()*	Halotrichite ()*	Hexahydrite ()*	Huizingite-(Al) ()*
Jarosite ()*	Kremersite ()*	Lonecreekite ()*	Marcasite ()*	Mascagnite ()*
Melanterite ()*	Metavoltine ()*	Pickeringite ()*	Pyracmonite ()*	Pyrite ()*
Quartz ()*	Rozenite ()*	Sabieite ()*	Salammoniac ()*	Sphalerite ()*
Sulphur ()*	Tschermigite ()*	Voltaite ()*	Whewellite ()*

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 Cl F Fe H K Mg N Na O Pb S Si Zn

Elements from minerals reported directly at this locality: Ca F

Structural Groups for minerals in this locality:
Adranosite Alum Alunite Aragonite Arcanite Baryte Botryogen Calcite Copiapite Epsomite
Fluorite Gypsum Halotrichite Hexahydrite Marcasite Melanterite Metavoltine None Not in a structural group Oxalate
Picromerite Pyracmonite Pyrite Quartz Rocksalt Sabieite Sphalerite Starkeyite Sulphur Voltaite

39 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
Adranosite-(Fe) ()*	Adranosite	(NH₄)₄NaFe₂(SO₄)₄Cl(OH)₂			1	253944	6
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O			2	253944,253949	272
Ammoniomagnesiovoltaite ()*	Voltaite	(NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O			1	253944	3
Anhydrite ()*	Not in a structural group	Ca(SO₄)			1	253944	1588
Aragonite ()*	Aragonite	Ca(CO₃)			2	253947,253949	3250
Baryte ()*	Baryte	Ba(SO₄)	383	359	4	253945,253947,253949,253950	11547
Botryogen ()*	Botryogen	MgFe³⁺(SO₄)₂(OH)·7H₂O			1	253949	45
Boussingaultite ()*	Picromerite	(NH₄)₂Mg(SO₄)₂·6H₂O			1	253944	30
Calcite ()*	Calcite	Ca(CO₃)	383	359	3	253945,253947,253949	27770
Carlsonite ()*	Metavoltine	(NH₄)₅Fe³⁺₃O(SO₄)₆·7H₂O			1	253944	1
Clairite ()*	None	(NH₄)₂Fe³⁺₃(SO₄)₄(OH)₃·3H₂O			1	253944	8
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O			1	253949	382
Dolomite ()*	None	CaMg(CO₃)₂	383	359	3	253945,253947,253949	9895
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O			1	253949	484
Fluorite ()*	Fluorite	CaF₂	383	359	0		9617
Galena ()*	Rocksalt	PbS			1	253949	24243
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			2	253944,253949	6890
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O			2	253944,253949	409
Hexahydrite ()*	Hexahydrite	Mg(SO₄)·6H₂O			1	253949	251
Huizingite-(Al) ()*	Not in a structural group	(NH₄)₉Al₃(SO₄)₈(OH)₂·4H₂O			1	253944	2
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			1	253944	2228
Kremersite ()*	None	(NH₄)₂Fe³⁺Cl₅·H₂O			1	253944	12
Lonecreekite ()*	Alum	(NH₄)Fe³⁺(SO₄)₂·12H₂O			1	253944	6
Marcasite ()*	Marcasite	FeS₂	383	359	1	253945	5674
Mascagnite ()*	Arcanite	(NH₄)₂(SO₄)			1	253944	61
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			1	253949	915
Metavoltine ()*	Metavoltine	K₂Na₆Fe²⁺Fe³⁺₆O₂(SO₄)₁₂·18H₂O			1	253944	78
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O			2	253944,253949	265
Pyracmonite ()*	Pyracmonite	(NH₄)₃Fe(SO₄)₃			1	253944	5
Pyrite ()*	Pyrite	FeS₂	383	359	3	253945,253947,253949	39462
Quartz ()*	Quartz	SiO₂	383	359	3	253945,253947,253949	61156
Rozenite ()*	Starkeyite	Fe²⁺(SO₄)·4H₂O			1	253949	293
Sabieite ()*	Sabieite	(NH₄)Fe³⁺(SO₄)₂			1	253944	9
Salammoniac ()*	None	(NH₄)Cl			1	253944	105
Sphalerite ()*	Sphalerite	ZnS	383	359	3	253945,253947,253949	21482
Sulphur ()*	Sulphur	S			1	253944	2045
Tschermigite ()*	Alum	(NH₄)Al(SO₄)₂·12H₂O			1	253944	81
Voltaite ()*	Voltaite	K₂Fe²⁺₅Fe³⁺₃Al(SO₄)₁₂·18H₂O			1	253944	111
Whewellite ()*	Oxalate	Ca(C₂O₄)·H₂O	383	359	1	253945	66

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_000573	Concretions bearing whewellite are found in the marine Ohio and Olentangy shales, Ohio. Concretions are described as septarian limestone and often fossiliferous, commonly from one to three feet in diameter. Other minerals within the concretions include fluorescent calcite, dolomite, ankerite, barite, marcasite, quartz and sphalerite. These concretions are found throughout the Devonian Ohio shales.

Age ID

Locality Notes

Michelle_000573

Concretions bearing whewellite are found in the marine Ohio and Olentangy shales, Ohio. Concretions are described as septarian limestone and often fossiliferous, commonly from one to three feet in diameter. Other minerals within the concretions include fluorescent calcite, dolomite, ankerite, barite, marcasite, quartz and sphalerite. These concretions are found throughout the Devonian Ohio shales.

1 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
	Michelle_000573	383	359	Upper Devonian		Age of Ohio Shale							Whewellite		266400	Huron Shale Concretions, Huron River, Huron Co., Ohio, USA	Huron Shale Concretions	Hyde and Landy (1966)		AM51_228	Age of concretion bearing Ohio Shale. "...The Huron River cuts through flat-lf ing beds of the marine Ohio and Olentangy shales of Upper Devonian age."

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...