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:
Buckskin Mts, La Paz Co., Arizona, USA

Oldest recorded age at locality: 30
Youngest recorded age at locality: 15.21

mindat Locality ID: 33449
mindat URL: http://www.mindat.org/loc-33449.html

Tectonic Settings:

Total number of sublocalities beneath "Buckskin Mts, La Paz Co., Arizona, USA": 151
Total number of bottom-level sublocalities: 127

Number of Child Localities: 7
Child Localities:
Alamo District
Cienega District
Cummingtonite Deposit
Ferric Wonder Claims
Heson Mine (Hesson Mine)
Midway District
Santa Maria District (Planet District; Swansea District; Bill Williams District)

Latitude: 34°9'26"N
Longitude: 113°51'38"W
Decimal Degree (lat, lon): 34.157222222222,-113.86055555556

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.

Allophane	Alunite	Amorphous	Amphibole	Aragonite	Baryte	Brochantite	Calcite	Chalcanthite	Chalcopyrite
Clay	Clinozoisite	Copper	Corundum	Epidote	Fluorite	Gypsum	Malachite	Mica	None
Not in a structural group	Pyrite	Quartz	Rutile	Spinel

Azurite ()*	Baryte ()*	Bornite ()*	Brochantite ()*	Calcite ()*
Cerussite ()*	Chalcanthite ()*	Chalcocite ()*	Chalcopyrite ()*	Chrysocolla ()*
Cummingtonite ()*	Cuprite ()*	Dioptase ()*	Epidote ()*	Fluorite ()*
Gold ()*	Gypsum ()*	Hematite ()*	Magnetite ()*	Malachite ()*
Manganite ()*	Muscovite ()*	Natroalunite ()*	Opal ()*	Pyrite ()*
Pyrolusite ()*	Quartz ()*	Siderite ()*	Urea ()*

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 Au Ba C Ca Cu F Fe H K Mg Mn N Na O Pb S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Alunite Amorphous Amphibole Aragonite Baryte Brochantite Calcite Chalcanthite Chalcopyrite
Clay Clinozoisite Copper Corundum Epidote Fluorite Gypsum Malachite Mica None
Not in a structural group Pyrite Quartz Rutile Spinel

29 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
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	17.11	15.21	4	139912,139933,139993,139995	5509
Baryte ()*	Baryte	Ba(SO₄)	17.11	15.21	8	139948,139957,139968,139969,139970,139971,139986,139995	11547
Bornite ()*	None	Cu₅FeS₄	17.11	15.21	4	139941,139993,139995,140007	5516
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	17.11	15.21	2	139929,139993	1633
Calcite ()*	Calcite	Ca(CO₃)	17.11	15.21	10	139877,139891,139935,139948,139957,139986,139989,139993,139994,139995	27770
Cerussite ()*	Aragonite	Pb(CO₃)	30	21.3	3	139957,140011,140012	4979
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O			1	139995	925
Chalcocite ()*	None	Cu₂S			2	139981,139989	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	17.11	15.21	6	139933,139941,139970,139993,139995,140007	27198
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	17.11	15.21	19	139887,139888,139899,139900,139902,139911,139912,139922,139929,139937,139946,139948,139955,139969,139975,139976,139981,139993,139995	3531
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			1	139955	327
Cuprite ()*	Not in a structural group	Cu₂O	17.11	15.21	2	139900,139995	2970
Dioptase ()*	None	CuSiO₃·H₂O	17.11	15.21	2	139933,139969	164
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	30	21.3	7	139968,139969,139970,139971,140007,140011,140012	8173
Fluorite ()*	Fluorite	CaF₂	30	15.21	14	139881,139882,139891,139917,139957,139968,139969,139970,139971,139997,140009,140011,140012,140017	9617
Gold ()*	Copper	Au	17.11	15.21	11	139899,139902,139911,139922,139946,139947,139970,139973,139981,139989,139995	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	30	21.3	4	139989,140003,140011,140012	6890
Hematite ()*	Corundum	Fe₂O₃	17.11	15.21	31	139899,139902,139903,139911,139912,139922,139929,139933,139935,139937,139941,139946,139947,139948,139955,139961,139968,139969,139970,139971,139974,139975,139976,139981,139986,139989,139993,139994,139995,140005,140007	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	139970	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	17.11	15.21	12	139899,139900,139902,139911,139912,139922,139933,139937,139946,139948,139993,139995	12537
Manganite ()*	Rutile	Mn³⁺O(OH)			4	139877,139895,139986,139995	770
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			2	139973,139995	17380
Natroalunite ()*	Alunite	NaAl₃(SO₄)₂(OH)₆			1	139995	128
Opal ()*	Amorphous	SiO₂·nH₂O			3	139955,139957,139975	2994
Pyrite ()*	Pyrite	FeS₂			4	139993,139994,139995,140007	39462
Pyrolusite ()*	Rutile	MnO₂			6	139875,139877,139883,139893,139895,139898	3106
Quartz ()*	Quartz	SiO₂	17.11	15.21	9	139947,139957,139975,139976,139981,139986,139989,139995,140007	61156
Siderite ()*	Calcite	Fe(CO₃)	17.11	15.21	1	139912	6417
Urea ()*	None	CO(NH₂)₂			1	139994	4

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Dated Mineral	Minerals explicitely stated as having this age	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Giersdorf_00000442	17.11	15.21	16.16±0.95	K-Ar			UAKA-68-06			31163	Cienega District, Buckskin Mts, La Paz Co., Arizona, USA	Parker	Shafiqullah et al. (1980)		AGSD12_201
Giersdorf_00000443	16.89	15.39	16.14±0.75	K-Ar			UAKA-68-07			31163	Cienega District, Buckskin Mts, La Paz Co., Arizona, USA	Parker	Shafiqullah et al. (1980)		AGSD12_201
Jen_0000035	21.5	21.3	21.5-21.3	U-Pb	crystallization age	zircon		Zircon	Baryte, Calcite, Chrysocolla, Hematite	253018	Swansea, Santa Maria District (Planet District; Swansea District; Bill Williams District), Buckskin Mts, La Paz Co., Arizona, USA	Swansea Plutonic Suite	Evenson et al. (2014)	10.2475/10.2014.01	AJS314_1373
Jen_0000035a	30	26	30-26	Ar-Ar	cooling age	hornblende			Baryte, Calcite, Chrysocolla, Hematite	253018	Swansea, Santa Maria District (Planet District; Swansea District; Bill Williams District), Buckskin Mts, La Paz Co., Arizona, USA	Swansea Plutonic Suite	Evenson et al. (2014)	10.2475/10.2014.01	AJS314_1373	age dates may be affected by access argon

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...