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:
Shawa Complex, Buhera District, Manicaland, Zimbabwe

Oldest recorded age at locality: 225
Youngest recorded age at locality: 193

mindat Locality ID: 247004
mindat URL: http://www.mindat.org/loc-247004.html

Tectonic Settings:

Total number of sublocalities beneath "Shawa Complex, Buhera District, Manicaland, Zimbabwe": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Dorowa

Latitude: 19°11'32"S
Longitude: 31°43'16"E
Decimal Degree (lat, lon): -19.192222222222,31.721111111111

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	Baddeleyite	Baryte	Calcite	Cancrinite	Cancrinite-sodalite	Clay	Corundum	Feldspar
Mica	None	Pyroxene	Quartz	Smectite-vermiculite	Sodalite	Spinel	Titanite	Tridymite

Actinolite ()*	Albite ()*	Augite ()*	Baddeleyite ()*	Baryte ()*
Calcite ()*	Cancrinite ()*	Diopside ()*	Dolomite ()*	Enstatite ()*
Fluorapatite ()*	Hematite ()*	Hydroxylapatite ()*	Lazurite ()*	Magnesite ()*
Magnetite ()*	Montmorillonite ()*	Nepheline ()*	Phlogopite ()*	Quartz ()*
Titanite ()*	Vermiculite ()*

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 Ba C Ca F Fe H K Mg Na O P S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Apatite Baddeleyite Baryte Calcite Cancrinite Cancrinite-sodalite Clay Corundum Feldspar
Mica None Pyroxene Quartz Smectite-vermiculite Sodalite Spinel Titanite Tridymite

22 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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	225	193	1	295182	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	225	193	1	295182	8803
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	225	193	1	295182	2060
Baddeleyite ()*	Baddeleyite	ZrO₂	225	193	2	295181,295182	238
Baryte ()*	Baryte	Ba(SO₄)	225	193	1	295182	11547
Calcite ()*	Calcite	Ca(CO₃)	225	193	2	295181,295182	27770
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	225	193	1	295182	232
Diopside ()*	Pyroxene	CaMgSi₂O₆	225	193	1	295182	4135
Dolomite ()*	None	CaMg(CO₃)₂	225	193	1	295182	9895
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	225	193	1	295182	944
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	225	193	2	295181,295182	2740
Hematite ()*	Corundum	Fe₂O₃	225	193	1	295182	14640
Hydroxylapatite ()*	Apatite	Ca₅(PO₄)₃OH	225	193	1	295181	367
Lazurite ()*	Cancrinite-sodalite Sodalite	Na₇Ca(Al₆Si₆O₂₄)(SO₄)(S₃)^1-·H₂O	225	193	1	295182	37
Magnesite ()*	Calcite	Mg(CO₃)	225	193	1	295182	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	225	193	2	295181,295182	14899
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	225	193	1	295182	1508
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	225	193	1	295182	884
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	225	193	1	295181	2273
Quartz ()*	Quartz	SiO₂	225	193	1	295182	61156
Titanite ()*	Titanite	CaTi(SiO₄)O	225	193	1	295182	4899
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	225	193	2	295181,295182	652

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000796	MAGMATIC STYLE: 1.5 km diameter ring dyke 30-300 m in thickness and dykes. ASSOCIATED SILICATE ROCKS: Ijolite, with areas of melteigite and urtite, nepheline-bearing syenite, serpentinite, dunite and fenite.

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
	Jen_0000796	225	193	209±16	Rb-Sr			biotite							247000	Shawa Mine, Dorowa, Shawa Complex, Buhera District, Manicaland, Zimbabwe	Shawa	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...