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:
Allamakee Co., Iowa, USA

mindat Locality ID: 24930
mindat URL: http://www.mindat.org/loc-24930.html

Tectonic Settings:

Total number of sublocalities beneath "Allamakee Co., Iowa, USA": 11
Total number of bottom-level sublocalities: 8

Number of Child Localities: 7
Child Localities:
Harpers Ferry Diggings
Hatfield And Clayton Prospects
Lansing
Postville
Prospects Near Lansing
Unnamed Occurrence
Waukon

Latitude: 43°18'20"N
Longitude: 91°21'50"W
Decimal Degree (lat, lon): 43.305555555556,-91.363888888889

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.

Aragonite	Baryte	Calcite	Clay	Corundum	Diaspore	Fluorite	Gypsum	Marcasite	None
Not in a structural group	Pyrite	Quartz	Rocksalt	Smectite-vermiculite	Sphalerite

Anglesite ()*	Baryte ()*	Calcite ()*	Cerussite ()*	Dolomite ()*
Fluorite ()*	Galena ()*	Goethite ()*	Gypsum ()*	Hematite ()*
Hemimorphite ()*	Marcasite ()*	Pyrite ()*	Quartz ()*	Sauconite ()*
Siderite ()*	Smithsonite ()*	Sphalerite ()*

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 F Fe H Mg Na O Pb S Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Baryte Calcite Clay Corundum Diaspore Fluorite Gypsum Marcasite None
Not in a structural group Pyrite Quartz Rocksalt Smectite-vermiculite Sphalerite

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Anglesite ()*	Baryte	Pb(SO₄)	2	214647,214654	2734
Baryte ()*	Baryte	Ba(SO₄)	1	214649	11547
Calcite ()*	Calcite	Ca(CO₃)	3	214647,214649,214654	27770
Cerussite ()*	Aragonite	Pb(CO₃)	2	214647,214654	4979
Dolomite ()*	None	CaMg(CO₃)₂	5	214644,214645,214647,214650,214654	9895
Fluorite ()*	Fluorite	CaF₂	1	214649	9617
Galena ()*	Rocksalt	PbS	5	214644,214645,214647,214650,214654	24243
Goethite ()*	Diaspore	FeO(OH)	3	214647,214653,214654	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	214649	6890
Hematite ()*	Corundum	Fe₂O₃	2	214651,214653	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	2	214647,214654	1689
Marcasite ()*	Marcasite	FeS₂	3	214647,214649,214654	5674
Pyrite ()*	Pyrite	FeS₂	3	214647,214649,214654	39462
Quartz ()*	Quartz	SiO₂	2	214647,214654	61156
Sauconite ()*	Clay Smectite-vermiculite	Na_0.3Zn₃(Si,Al)₄O₁₀(OH)₂·4H₂O	1	214654	56
Siderite ()*	Calcite	Fe(CO₃)	1	214649	6417
Smithsonite ()*	Calcite	Zn(CO₃)	2	214647,214654	2473
Sphalerite ()*	Sphalerite	ZnS	2	214649,214654	21482

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...