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:
Longonjo City Council, Huambo Province, Angola

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

mindat Locality ID: 285295
mindat URL: http://www.mindat.org/loc-285295.html

Tectonic Settings:

Total number of sublocalities beneath "Longonjo City Council, Huambo Province, Angola": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Mt Chibilundo

Latitude: 12°50'59"S
Longitude: 15°15'0"E
Decimal Degree (lat, lon): -12.849722222222,15.25

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.

Aragonite	Baddeleyite	Baryte	Bradleyite	Burbankite	Fairchildite	None	Pyrite	Quartz	Rocksalt
Rutile	Spinel

Baddeleyite ()*	Baryte ()*	Bradleyite ()*	Burbankite ()*	Celestine ()*
Dolomite ()*	Eitelite ()*	Galena ()*	Magnetite ()*	Nyerereite ()*
Pyrite ()*	Quartz ()*	Rutile ()*	Shortite ()*	Strontianite ()*
Synchysite-(Y) ()*	Witherite ()*

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: Ba C Ca Ce F Fe Mg Na O P Pb S Si Sr Ti Y Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Baddeleyite Baryte Bradleyite Burbankite Fairchildite None Pyrite Quartz Rocksalt
Rutile Spinel

17 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
Baddeleyite ()*	Baddeleyite	ZrO₂	145	66	1	1570	238
Baryte ()*	Baryte	Ba(SO₄)	145	66	1	1570	11547
Bradleyite ()*	Bradleyite	Na₃Mg(PO₄)(CO₃)	145	66	1	1570	14
Burbankite ()*	Burbankite	(Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅	145	66	1	1570	52
Celestine ()*	Baryte	Sr(SO₄)	145	66	1	1570	1252
Dolomite ()*	None	CaMg(CO₃)₂	145	66	1	1570	9895
Eitelite ()*	None	Na₂Mg(CO₃)₂	145	66	1	1570	20
Galena ()*	Rocksalt	PbS	145	66	1	1570	24243
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	145	66	1	1570	14899
Nyerereite ()*	Fairchildite	Na₂Ca(CO₃)₂	145	66	1	1570	18
Pyrite ()*	Pyrite	FeS₂	145	66	1	1570	39462
Quartz ()*	Quartz	SiO₂	145	66	1	1570	61156
Rutile ()*	Rutile	TiO₂	145	66	1	1570	5614
Shortite ()*	None	Na₂Ca₂(CO₃)₃	145	66	1	1570	37
Strontianite ()*	Aragonite	Sr(CO₃)	145	66	1	1570	589
Synchysite-(Y) ()*	None	CaY(CO₃)₂F	145	66	1	1570	55
Witherite ()*	Aragonite	Ba(CO₃)	145	66	1	1570	251

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-00006	145	66	Cretaceous											158065	Mt Chibilundo, Longonjo City Council, Huambo Province, Angola	Longonjo (Mt. Chibilundo)	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...