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:
Izard Co., Arkansas, USA

mindat Locality ID: 28349
mindat URL: http://www.mindat.org/loc-28349.html

Tectonic Settings:

Total number of sublocalities beneath "Izard Co., Arkansas, USA": 5
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Batesville Manganese District
Calico Rock
Violet Hill

Latitude: 36°7'6"N
Longitude: 92°'5"W
Decimal Degree (lat, lon): 36.118333333333,-92.001388888889

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.

Baryte	Braunite	Calcite	Fluorite	Gypsum	Iron	Millerite	None	Perovskite	Pyrite
Rocksalt	Rutile	Spinel

Baryte ()*	Braunite ()*	Calcite ()*	Cohenite ()*	Daubréelite ()*
Dolomite ()*	Fluorite ()*	Galena ()*	Gypsum ()*	Hausmannite ()*
Iron ()*	Manganite ()*	Millerite ()*	Pyrite ()*	Pyrolusite ()*
Rhodochrosite ()*	Schreibersite ()*	Troilite ()*

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: Ba C Ca Cr F Fe H Mg Mn Ni O P Pb S Si

Elements from minerals reported directly at this locality: C Ca Mg Ni O S

Structural Groups for minerals in this locality:
Baryte Braunite Calcite Fluorite Gypsum Iron Millerite None Perovskite Pyrite
Rocksalt Rutile Spinel

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	1	149805	11547
Braunite ()*	Braunite	Mn²⁺Mn³⁺₆O₈(SiO₄)	1	149805	483
Calcite ()*	Calcite	Ca(CO₃)	2	149805,149809	27770
Cohenite ()*	Perovskite	CFe₃	1	149807	77
Daubréelite ()*	Spinel	FeCr₂S₄	1	149807	157
Dolomite ()*	None	CaMg(CO₃)₂	0		9895
Fluorite ()*	Fluorite	CaF₂	1	149805	9617
Galena ()*	Rocksalt	PbS	1	149805	24243
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	149805	6890
Hausmannite ()*	Spinel	Mn²⁺Mn³⁺₂O₄	1	149805	350
Iron ()*	Iron	Fe	1	149807	1089
Manganite ()*	Rutile	Mn³⁺O(OH)	1	149805	770
Millerite ()*	Millerite	NiS	0		1066
Pyrite ()*	Pyrite	FeS₂	1	149805	39462
Pyrolusite ()*	Rutile	MnO₂	1	149805	3106
Rhodochrosite ()*	Calcite	Mn(CO₃)	1	149805	1711
Schreibersite ()*	None	(Fe,Ni)₃P	1	149807	374
Troilite ()*	None	FeS	1	149807	1044

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...