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:
Junguni Hill, Balaka, Southern Region, Malawi

Oldest recorded age at locality: 164
Youngest recorded age at locality: 100

mindat Locality ID: 30879
mindat URL: http://www.mindat.org/loc-30879.html

Tectonic Settings:

Total number of sublocalities beneath "Junguni Hill, Balaka, Southern Region, Malawi": 0
Total number of bottom-level sublocalities: 0

Latitude: 15°2'"S
Longitude: 35°17'0"E
Decimal Degree (lat, lon): -15.033333333333,35.283333333333

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	Astrophyllite	Cancrinite-sodalite	Corundum	Eudialyte	Fluorite	None	Sodalite	Titanite
Tridymite	Wöhlerite

Arfvedsonite ()*	Astrophyllite ()*	Britholite-(Ce) ()*	Eudialyte ()*	Fluorite ()*
Kupletskite ()*	Låvenite ()*	Nepheline ()*	Pyrophanite ()*	Rosenbuschite ()*
Sodalite ()*	Titanite ()*	Wöhlerite ()*

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 Ca Ce Cl F Fe H K Mn Na Nb O Si Ti Zr

Elements from minerals reported directly at this locality: Al Ca Ce Cl F Fe H K Mn Na Nb O Si Ti Zr

Structural Groups for minerals in this locality:
Amphibole Apatite Astrophyllite Cancrinite-sodalite Corundum Eudialyte Fluorite None Sodalite Titanite
Tridymite Wöhlerite

13 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	164	100	295
Astrophyllite ()*	Astrophyllite	K₂NaFe²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F	164	100	161
Britholite-(Ce) ()*	Apatite	(Ce,Ca)₅(SiO₄)₃(OH)	164	100	115
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	164	100	182
Fluorite ()*	Fluorite	CaF₂	164	100	9617
Kupletskite ()*	Astrophyllite	K₂NaMn²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F	164	100	33
Låvenite ()*	Wöhlerite	(Na,Ca)₄(Mn²⁺,Fe²⁺)₂(Zr,Ti,Nb)₂(Si₂O₇)₂(O,F)₄	164	100	58
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	164	100	884
Pyrophanite ()*	Corundum	Mn²⁺TiO₃	164	100	244
Rosenbuschite ()*	None	Ca₆Zr₂Na₆ZrTi(Si₂O₇)₄(OF)₂F₄	164	100	42
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl	164	100	444
Titanite ()*	Titanite	CaTi(SiO₄)O	164	100	4899
Wöhlerite ()*	Wöhlerite	Na₂Ca₄Zr(Nb,Ti)(Si₂O₇)₂(O,F)₄	164	100	83

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-00428	164	100	Late Jurassic - Early Cretaceous											30879	Junguni Hill, Balaka, Southern Region, Malawi	Junguni	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...