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:
Viloco Mine (Araca Mine), Loayza Province, La Paz, Bolivia

Oldest recorded age at locality: 26.4
Youngest recorded age at locality: 25.2

mindat Locality ID: 335
mindat URL: http://www.mindat.org/loc-335.html

Tectonic Settings:

Total number of sublocalities beneath "Viloco Mine (Araca Mine), Loayza Province, La Paz, Bolivia": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
San Antonio Mine

Latitude: 16°52'"S
Longitude: 67°38'"W
Decimal Degree (lat, lon): -16.866666666667,-67.633333333333

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.

Acanthite	Arsenic	Arsenopyrite	Calcite	Chalcopyrite	Chlorite	Clay	Columbite	Corundum	Diaspore
Kaolinite	Löllingite	Mica	Molybdenite	Nickeline	None	Pyrite	Quartz	Rocksalt	Rutile
Scheelite	Sphalerite	Spinel	Stannite	Stibnite	Zircon

Acanthite ()*	Arsenopyrite ()*	Bismuth ()*	Bismuthinite ()*	Cassiterite ()*
Chalcopyrite ()*	Chamosite ()*	Ferberite ()*	Ferrimolybdite ()*	Goethite ()*
Halite ()*	Hematite ()*	Kaolinite ()*	Löllingite ()*	Magnetite ()*
Molybdenite ()*	Muscovite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Rutile ()*	Scheelite ()*	Siderite ()*	Sphalerite ()*	Stannite ()*
Tin ()*	Zircon ()*

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: Ag Al As Bi C Ca Cl Cu Fe H K Mg Mo Na O S Si Sn Ti W Zn Zr

Elements from minerals reported directly at this locality: Ag Al As Bi Ca Cl Cu Fe H K Mg Mo Na O S Si Sn Ti W Zn Zr

Structural Groups for minerals in this locality:
Acanthite Arsenic Arsenopyrite Calcite Chalcopyrite Chlorite Clay Columbite Corundum Diaspore
Kaolinite Löllingite Mica Molybdenite Nickeline None Pyrite Quartz Rocksalt Rutile
Scheelite Sphalerite Spinel Stannite Stibnite Zircon

27 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
Acanthite ()*	Acanthite	Ag₂S	26.4	25.2	0		2793
Arsenopyrite ()*	Arsenopyrite	FeAsS	26.4	25.2	1	25999	9052
Bismuth ()*	Arsenic	Bi	26.4	25.2	0		1966
Bismuthinite ()*	Stibnite	Bi₂S₃	26.4	25.2	0		1935
Cassiterite ()*	Rutile	SnO₂	26.4	25.2	1	25999	5171
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	26	26	1	25999	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈	26.4	25.2	0		577
Ferberite ()*	Columbite	Fe²⁺(WO₄)	26.4	25.2	0		551
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O	26.4	25.2	0		345
Goethite ()*	Diaspore	FeO(OH)	26.4	25.2	1	25999	7437
Halite ()*	Rocksalt	NaCl	26.4	25.2	0		1398
Hematite ()*	Corundum	Fe₂O₃	26.4	25.2	0		14640
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	26.4	25.2	0		5591
Löllingite ()*	Löllingite	FeAs₂	26.4	25.2	0		762
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	26.4	25.2	1	25999	14899
Molybdenite ()*	Molybdenite	MoS₂	26.4	25.2	0		5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	26.4	25.2	0		17380
Pyrite ()*	Pyrite	FeS₂	26.4	25.2	0		39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	26.4	25.2	1	25999	9056
Quartz ()*	Quartz	SiO₂	26.4	25.2	1	25999	61156
Rutile ()*	Rutile	TiO₂	26.4	25.2	0		5614
Scheelite ()*	Scheelite	Ca(WO₄)	26.4	25.2	0		4894
Siderite ()*	Calcite	Fe(CO₃)	26.4	25.2	1	25999	6417
Sphalerite ()*	Sphalerite	ZnS	26.4	25.2	0		21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	26.4	25.2	0		668
Tin ()*	None	Sn	26.4	25.2	0		63
Zircon ()*	Zircon	Zr(SiO₄)	26.4	25.2	0		5251

3 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	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Kaitlynn000017	26	26	26	K-Ar	age of sulphide	chalcopyrite	CR-256	Chalcopyrite	335	Viloco Mine (Araca Mine), Loayza Province, La Paz, Bolivia	Viloco	Tilton et al. (1981)	10.1130/MEM154-p791	MGSA154_791
T25_1_001	26.4	26	26.2 ± 0.2	U-Pb		zircon		Zircon	335	Viloco Mine (Araca Mine), Loayza Province, La Paz, Bolivia	Viloco mine	Gillis et al. (2006)		T25_1
T25_1_002	25.6	25.2	25.4 ± 0.2	U-Pb		zircon		Zircon	335	Viloco Mine (Araca Mine), Loayza Province, La Paz, Bolivia	Viloco mine	Gillis et al. (2006)		T25_1

Sample	Source Locality	Reference URL
R050576	Viloco Mine (Araca Mine), Loayza Province, La Paz, Bolivia	https://rruff.info/R050576

All locality data graciously provided by mindat.org

All age data...