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:
Shady, Polk Co., Arkansas, USA

mindat Locality ID: 3419
mindat URL: http://www.mindat.org/loc-3419.html

Tectonic Settings:

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

Number of Child Localities: 3
Child Localities:
Coon Creek Mine (York Mine)
Isom Avants Pits
Sam Avants Prospects

Latitude: 34°24'53"N
Longitude: 93°57'36"W
Decimal Degree (lat, lon): 34.414722222222,-93.96

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	Beraunite	Calcite	Coronadite	Corundum	Diaspore	Dufrénite	Laueite	None	Phosphosiderite
Quartz	Rockbridgeite	Turquoise

Cacoxenite ()*	Cryptomelane ()*	Dufrénite ()*	Eleonorite ()*	Goethite ()*
Hematite ()*	Kidwellite ()*	Magnesite ()*	Opal ()*	Phosphosiderite ()*
Planerite ()*	Quartz ()*	Rockbridgeite ()*	Sigloite ()*	Strengite ()*
Turquoise ()*

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 C Ca Cu Fe H K Mg Mn Na O P Si

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

Structural Groups for minerals in this locality:
Amorphous Beraunite Calcite Coronadite Corundum Diaspore Dufrénite Laueite None Phosphosiderite
Quartz Rockbridgeite Turquoise

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Cacoxenite ()*	None	Fe³⁺₂₄AlO₆(PO₄)₁₇(OH)₁₂·75H₂O	3	150194,150195,150196	280
Cryptomelane ()*	Coronadite	K(Mn⁴⁺₇Mn³⁺)O₁₆	1	150194	599
Dufrénite ()*	Dufrénite	Ca_0.5Fe²⁺Fe³⁺₅(PO₄)₄(OH)₆·2H₂O	1	150194	139
Eleonorite ()*	Beraunite	Fe³⁺₆(PO₄)₄O(OH)₄·6H₂O	3	150194,150195,150196	51
Goethite ()*	Diaspore	FeO(OH)	2	150194,150196	7437
Hematite ()*	Corundum	Fe₂O₃	1	150194	14640
Kidwellite ()*	None	NaFe³⁺_9+x(PO₄)₆(OH)₁₁·3H₂O (x ≈ 0.33)	2	150194,150196	53
Magnesite ()*	Calcite	Mg(CO₃)	0		1487
Opal ()*	Amorphous	SiO₂·nH₂O	2	150194,150196	2994
Phosphosiderite ()*	Phosphosiderite	Fe³⁺(PO₄)·2H₂O	1	150194	182
Planerite ()*	Turquoise	Al₆(PO₄)₂(PO₃OH)₂(OH)₈·4H₂O	2	150194,150196	43
Quartz ()*	Quartz	SiO₂	1	150194	61156
Rockbridgeite ()*	Rockbridgeite	(Fe²⁺_0.5Fe³⁺_0.5)₂Fe³⁺₃(PO₄)₃(OH)₅	3	150194,150195,150196	206
Sigloite ()*	Laueite	Fe³⁺Al₂(PO₄)₂(OH)₃·7H₂O	1	150194	4
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O	3	150194,150195,150196	263
Turquoise ()*	Turquoise	CuAl₆(PO₄)₄(OH)₈·4H₂O	1	150194	484

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
R060464	Coon Creek Mine (York Mine), Shady, Polk Co., Arkansas, USA	https://rruff.info/R060464
R060324	Coon Creek Mine (York Mine), Shady, Polk Co., Arkansas, USA	https://rruff.info/R060324

All locality data graciously provided by mindat.org

All age data...