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:
Loayza Province, La Paz, Bolivia

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

mindat Locality ID: 24775
mindat URL: http://www.mindat.org/loc-24775.html

Tectonic Settings:

Total number of sublocalities beneath "Loayza Province, La Paz, Bolivia": 21
Total number of bottom-level sublocalities: 14

Number of Child Localities: 12
Child Localities:
Chojñacota Mine
Choquetanga Chico
El Asiento De Araca
Espíritu Santo Mine
Ichuraya
Iruchuño (Uruchuño)
Luribay
Mallachuma Mine
Mocoya
Monteblanco Mine
Sapahaqui
Viloco Mine (Araca Mine)

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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	Alunite	Amorphous	Arsenic	Arsenopyrite	Baryte	Calcite	Chalcopyrite	Chlorite	Clay
Columbite	Copiapite	Copper	Corundum	Diaspore	Gypsum	Halotrichite	Kaolinite	Löllingite	Melanterite
Mica	Molybdenite	Nickeline	None	Pyrite	Pyrochlore	Quartz	Rocksalt	Rutile	Scheelite
Sphalerite	Spinel	Stannite	Stibnite	Sulphur	Zircon

Acanthite ()*	Ankerite ()*	Arsenopyrite ()*	Baryte ()*	Bindheimite ()*
Bismuth ()*	Bismuthinite ()*	Cassiterite ()*	Cervantite ()*	Chalcopyrite ()*
Chamosite ()*	Cinnabar ()*	Copiapite ()*	Ferberite ()*	Ferrimolybdite ()*
Galena ()*	Glauberite ()*	Goethite ()*	Gold ()*	Gypsum ()*
Halite ()*	Hematite ()*	Jamesonite ()*	Jarosite ()*	Kaolinite ()*
Löllingite ()*	Magnetite ()*	Melanterite ()*	Mirabilite ()*	Molybdenite ()*
Muscovite ()*	Opal ()*	Pickeringite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Realgar ()*	Rutile ()*	Scheelite ()*	Siderite ()*
Sphalerite ()*	Stannite ()*	Stibnite ()*	Sulphur ()*	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 Au Ba Bi C Ca Cl Cu Fe H Hg K Mg Mo Na O Pb S Sb Si Sn Ti W Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Alunite Amorphous Arsenic Arsenopyrite Baryte Calcite Chalcopyrite Chlorite Clay
Columbite Copiapite Copper Corundum Diaspore Gypsum Halotrichite Kaolinite Löllingite Melanterite
Mica Molybdenite Nickeline None Pyrite Pyrochlore Quartz Rocksalt Rutile Scheelite
Sphalerite Spinel Stannite Stibnite Sulphur Zircon

46 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	1	25998	2793
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			2	25986,25987	3092
Arsenopyrite ()*	Arsenopyrite	FeAsS	26.4	25.2	6	25979,25980,25982,25983,25998,25999	9052
Baryte ()*	Baryte	Ba(SO₄)			2	25986,25987	11547
Bindheimite ()*	Pyrochlore	Pb₂Sb⁵⁺₂O₇			1	25982	450
Bismuth ()*	Arsenic	Bi	26.4	25.2	1	25998	1966
Bismuthinite ()*	Stibnite	Bi₂S₃	26.4	25.2	1	25998	1935
Cassiterite ()*	Rutile	SnO₂	26.4	25.2	6	25979,25982,25983,25993,25998,25999	5171
Cervantite ()*	None	Sb³⁺Sb⁵⁺O₄			1	25984	352
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	26	26	4	25979,25983,25998,25999	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈	26.4	25.2	1	25998	577
Cinnabar ()*	None	HgS			2	25990,25997	2600
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O			1	25997	382
Ferberite ()*	Columbite	Fe²⁺(WO₄)	26.4	25.2	3	25986,25987,25998	551
Ferrimolybdite ()*	None	Fe³⁺₂(Mo⁶⁺O₄)₃·7H₂O	26.4	25.2	1	25998	345
Galena ()*	Rocksalt	PbS			1	25979	24243
Glauberite ()*	None	Na₂Ca(SO₄)₂			1	25984	137
Goethite ()*	Diaspore	FeO(OH)	26.4	25.2	2	25998,25999	7437
Gold ()*	Copper	Au			2	25980,25983	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	25997	6890
Halite ()*	Rocksalt	NaCl	26.4	25.2	1	25998	1398
Hematite ()*	Corundum	Fe₂O₃	26.4	25.2	1	25998	14640
Jamesonite ()*	None	Pb₄FeSb₆S₁₄			1	25982	784
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			1	25997	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	26.4	25.2	1	25998	5591
Löllingite ()*	Löllingite	FeAs₂	26.4	25.2	1	25998	762
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	26.4	25.2	2	25998,25999	14899
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			1	25984	915
Mirabilite ()*	None	Na₂(SO₄)·10H₂O			1	25984	223
Molybdenite ()*	Molybdenite	MoS₂	26.4	25.2	1	25998	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	26.4	25.2	3	25980,25983,25998	17380
Opal ()*	Amorphous	SiO₂·nH₂O			1	25997	2994
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O			1	25984	265
Pyrite ()*	Pyrite	FeS₂	26.4	25.2	6	25979,25980,25983,25984,25993,25998	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	26.4	25.2	5	25980,25983,25993,25998,25999	9056
Quartz ()*	Quartz	SiO₂	26.4	25.2	10	25979,25980,25982,25983,25988,25991,25993,25997,25998,25999	61156
Realgar ()*	None	AsS			1	25997	712
Rutile ()*	Rutile	TiO₂	26.4	25.2	1	25998	5614
Scheelite ()*	Scheelite	Ca(WO₄)	26.4	25.2	3	25980,25983,25998	4894
Siderite ()*	Calcite	Fe(CO₃)	26.4	25.2	3	25979,25998,25999	6417
Sphalerite ()*	Sphalerite	ZnS	26.4	25.2	2	25979,25998	21482
Stannite ()*	Stannite Sphalerite	Cu₂FeSnS₄	26.4	25.2	1	25998	668
Stibnite ()*	Stibnite	Sb₂S₃			3	25984,25986,25987	3418
Sulphur ()*	Sulphur	S			2	25984,25997	2045
Tin ()*	None	Sn	26.4	25.2	1	25998	63
Zircon ()*	Zircon	Zr(SiO₄)	26.4	25.2	1	25998	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...