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:
Howard Co., Arkansas, USA

mindat Locality ID: 24254
mindat URL: http://www.mindat.org/loc-24254.html

Tectonic Settings:

Total number of sublocalities beneath "Howard Co., Arkansas, USA": 21
Total number of bottom-level sublocalities: 16

Number of Child Localities: 5
Child Localities:
Briar
Dierks District (Dierks Barite District)
Euclid
Howard County Celestite District
Southwest Arkansas Mercury District

Latitude: 34°7'16"N
Longitude: 93°57'3"W
Decimal Degree (lat, lon): 34.121111111111,-93.950833333333

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.

Amorphous	Aragonite	Baryte	Calcite	Chalcopyrite	Clay	Corundum	Diaspore	Gypsum	Kaolinite
Marcasite	None	Pyrite	Pyrochlore	Quartz	Rocksalt	Sphalerite	Stibnite

Baryte ()*	Calcite ()*	Calomel ()*	Celestine ()*	Chalcopyrite ()*
Cinnabar ()*	Dickite ()*	Eglestonite ()*	Galena ()*	Goethite ()*
Gypsum ()*	Hematite ()*	Livingstonite ()*	Marcasite ()*	Mercury ()*
Metacinnabar ()*	Opal ()*	Pyrite ()*	Quartz ()*	Siderite ()*
Sphalerite ()*	Stibiconite ()*	Stibnite ()*	Strontianite ()*

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 Cu Fe H Hg O Pb S Sb Si Sr Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Aragonite Baryte Calcite Chalcopyrite Clay Corundum Diaspore Gypsum Kaolinite
Marcasite None Pyrite Pyrochlore Quartz Rocksalt Sphalerite Stibnite

24 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)	5	149776,149777,149778,149794,149795	11547
Calcite ()*	Calcite	Ca(CO₃)	2	149776,149792	27770
Calomel ()*	None	HgCl	1	149792	91
Celestine ()*	Baryte	Sr(SO₄)	2	149776,149788	1252
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	149783	27198
Cinnabar ()*	None	HgS	3	149793,149794,149795	2600
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	2	149794,149795	651
Eglestonite ()*	None	([Hg¹⁺]₂)₃OCl₃(OH)	1	149792	36
Galena ()*	Rocksalt	PbS	2	149783,149792	24243
Goethite ()*	Diaspore	FeO(OH)	1	149795	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	149776	6890
Hematite ()*	Corundum	Fe₂O₃	1	149792	14640
Livingstonite ()*	None	HgSb₄S₆(S)₂	1	149792	24
Marcasite ()*	Marcasite	FeS₂	1	149776	5674
Mercury ()*	None	Hg	1	149792	397
Metacinnabar ()*	Sphalerite	HgS	1	149795	255
Opal ()*	Amorphous	SiO₂·nH₂O	1	149792	2994
Pyrite ()*	Pyrite	FeS₂	3	149776,149788,149792	39462
Quartz ()*	Quartz	SiO₂	1	149795	61156
Siderite ()*	Calcite	Fe(CO₃)	1	149795	6417
Sphalerite ()*	Sphalerite	ZnS	1	149783	21482
Stibiconite ()*	Pyrochlore	Sb³⁺Sb⁵⁺₂O₆(OH)	1	149792	446
Stibnite ()*	Stibnite	Sb₂S₃	1	149792	3418
Strontianite ()*	Aragonite	Sr(CO₃)	1	149776	589

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...