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:
Bailundo, Bailundo City Council, Huambo Province, Angola

Oldest recorded age at locality: 145
Youngest recorded age at locality: 66

mindat Locality ID: 158061
mindat URL: http://www.mindat.org/loc-158061.html

Tectonic Settings:

Total number of sublocalities beneath "Bailundo, Bailundo City Council, Huambo Province, Angola": 0
Total number of bottom-level sublocalities: 0

Latitude: 12°9'"S
Longitude: 15°57'0"E
Decimal Degree (lat, lon): -12.15,15.95

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.

Amphibole	Apatite	Aragonite	Baryte	Bradleyite	Brookite	Calcite	Coronadite	Corundum	Diaspore
Eudialyte	Fairchildite	Feldspar	Fluorite	Lepidocrocite	Magnetoplumbite	None	Northupite	Not in a structural group	Pyrite
Pyroxene	Rhabdophane	Rocksalt	Rutile	Spinel	Titanite	Tridymite	Zircon

Aegirine ()*	Albite ()*	Anatase ()*	Anhydrite ()*	Ankerite ()*
Arfvedsonite ()*	Baryte ()*	Bradleyite ()*	Brockite ()*	Brookite ()*
Calcite ()*	Cerianite-(Ce) ()*	Dolomite ()*	Eitelite ()*	Eudialyte ()*
Ferrotychite ()*	Fluorapatite ()*	Goethite ()*	Gregoryite ()*	Halite ()*
Hematite ()*	Hibonite ()*	Hollandite ()*	Iimoriite-(Y) ()*	Ilmenite ()*
Kainosite-(Y) ()*	Lepidocrocite ()*	Magnetite ()*	Nepheline ()*	Nyerereite ()*
Pyrite ()*	Rhabdophane-(Ce) ()*	Rhabdophane-(Nd) ()*	Romanèchite ()*	Rutile ()*
Shortite ()*	Stillwellite-(Ce) ()*	Strontianite ()*	Synchysite-(Y) ()*	Titanite ()*
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: Al B Ba C Ca Ce Cl F Fe H K Mg Mn Na Nd O P S Si Sr Th Ti Y Zr

Elements from minerals reported directly at this locality: Al B Ba C Ca Ce Cl F Fe H K Mg Mn Na Nd O P S Si Sr Th Ti Y Zr

Structural Groups for minerals in this locality:
Amphibole Apatite Aragonite Baryte Bradleyite Brookite Calcite Coronadite Corundum Diaspore
Eudialyte Fairchildite Feldspar Fluorite Lepidocrocite Magnetoplumbite None Northupite Not in a structural group Pyrite
Pyroxene Rhabdophane Rocksalt Rutile Spinel Titanite Tridymite Zircon

41 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	145	66	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	145	66	8803
Anatase ()*	Not in a structural group	TiO₂	145	66	2162
Anhydrite ()*	Not in a structural group	Ca(SO₄)	145	66	1588
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	145	66	3092
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	145	66	295
Baryte ()*	Baryte	Ba(SO₄)	145	66	11547
Bradleyite ()*	Bradleyite	Na₃Mg(PO₄)(CO₃)	145	66	14
Brockite ()*	Rhabdophane	(Ca,Th,Ce)(PO₄)·H₂O	145	66	48
Brookite ()*	Brookite	TiO₂	145	66	700
Calcite ()*	Calcite	Ca(CO₃)	145	66	27770
Cerianite-(Ce) ()*	Fluorite	CeO₂	145	66	94
Dolomite ()*	None	CaMg(CO₃)₂	145	66	9895
Eitelite ()*	None	Na₂Mg(CO₃)₂	145	66	20
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	145	66	182
Ferrotychite ()*	Northupite	Na₆Fe²⁺₂(CO₃)₄(SO₄)	145	66	2
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	145	66	2740
Goethite ()*	Diaspore	FeO(OH)	145	66	7437
Gregoryite ()*	None	Na₂(CO₃)	145	66	3
Halite ()*	Rocksalt	NaCl	145	66	1398
Hematite ()*	Corundum	Fe₂O₃	145	66	14640
Hibonite ()*	Magnetoplumbite	CaAl₁₂O₁₉	145	66	80
Hollandite ()*	Coronadite	Ba(Mn⁴⁺₆Mn³⁺₂)O₁₆	145	66	243
Iimoriite-(Y) ()*	None	Y₂(SiO₄)(CO₃)	145	66	8
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	145	66	5433
Kainosite-(Y) ()*	None	Ca₂Y₂(SiO₃)₄(CO₃)·H₂O	145	66	99
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	145	66	581
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	145	66	14899
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	145	66	884
Nyerereite ()*	Fairchildite	Na₂Ca(CO₃)₂	145	66	18
Pyrite ()*	Pyrite	FeS₂	145	66	39462
Rhabdophane-(Ce) ()*	Rhabdophane	Ce(PO₄)·H₂O	145	66	66
Rhabdophane-(Nd) ()*	Rhabdophane	Nd(PO₄)·H₂O	145	66	14
Romanèchite ()*	None	(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀	145	66	312
Rutile ()*	Rutile	TiO₂	145	66	5614
Shortite ()*	None	Na₂Ca₂(CO₃)₃	145	66	37
Stillwellite-(Ce) ()*	None	CeBSiO₅	145	66	19
Strontianite ()*	Aragonite	Sr(CO₃)	145	66	589
Synchysite-(Y) ()*	None	CaY(CO₃)₂F	145	66	55
Titanite ()*	Titanite	CaTi(SiO₄)O	145	66	4899
Zircon ()*	Zircon	Zr(SiO₄)	145	66	5251

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	ree-00002	145	66	Cretaceous											158061	Bailundo, Bailundo City Council, Huambo Province, Angola	Bailundo	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...