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Somabula, Gweru District (Gwelo District), Midlands, Zimbabwei
Regional Level Types
Somabula- not defined -
Gweru District (Gwelo District)District
MidlandsProvince
ZimbabweCountry

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Key
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Latitude & Longitude (WGS84):
19° South , 29° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~63km


Karoo-age gem gravels found in ancient river conglomerate deposit. Located 20km sw of Gweru.

Regions containing this locality

African PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

18 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Andalusite
Formula: Al2(SiO4)O
Reference: Rocks & Minerals (1955) 30:464-471
Beryl
Formula: Be3Al2(Si6O18)
Reference: Rocks & Minerals (1955) 30:464-471
Beryl var: Emerald
Formula: Be3Al2(Si6O18)
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 90.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Rocks & Minerals (1955) 30:464-471
Chrysoberyl
Formula: BeAl2O4
Reference: Rocks & Minerals (1955) 30:464-471
Chrysoberyl var: Alexandrite
Formula: BeAl2O4
Reference: Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 74.
Corundum
Formula: Al2O3
Description: Rubies and sapphires were found as early as 1903 when some small stones where faceted from this material.
Reference: Rocks & Minerals (1955) 30:464-471; Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 82.
Corundum var: Ruby
Formula: Al2O3
Corundum var: Sapphire
Formula: Al2O3
Description: Rubies and sapphires were found as early as 1903 when some small stones where faceted from this material.
Reference: Rocks & Minerals (1955) 30:464-471; Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 82.
Diamond
Formula: C
Reference: Rocks & Minerals (1955) 30:464-471. Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 90.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Rocks & Minerals (1955) 30:464-471
Gold
Formula: Au
Reference: Rocks & Minerals (1955) 30:464-471
Gorceixite
Formula: BaAl3(PO4)(PO3OH)(OH)6
Description: Occurs in Triassic diamantiferous gravels.
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 833.
Ilmenite
Formula: Fe2+TiO3
Reference: Rocks & Minerals (1955) 30:464-471
Iridium
Formula: (Ir,Os,Ru)
Reference: Rocks & Minerals (1955) 30:464-471
Iridium var: Osmiridium
Formula: (Ir,Os,Ru)
Reference: Rocks & Minerals (1955) 30:464-471
'K Feldspar'
Reference: Rocks & Minerals (1955) 30:464-471
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Rocks & Minerals (1955) 30:464-471
Kyanite
Formula: Al2(SiO4)O
Reference: Rocks & Minerals (1955) 30:464-471
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Rocks & Minerals (1955) 30:464-471
Platinum
Formula: Pt
Reference: Rocks & Minerals (1955) 30:464-471
Quartz
Formula: SiO2
Reference: Rocks & Minerals (1955) 30:464-471
Quartz var: Chalcedony
Formula: SiO2
Reference: Rocks & Minerals (1955) 30:464-471
Quartz var: Jasper
Reference: Rocks & Minerals (1955) 30:464-471
Rutile
Formula: TiO2
Reference: Rocks & Minerals (1955) 30:464-471
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Rocks & Minerals (1955) 30:464-471
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Reference: Rocks & Minerals (1955) 30:464-471
Topaz
Formula: Al2(SiO4)(F,OH)2
Colour: White and blue
Reference: Rocks & Minerals (1955) 30:464-471. Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 90.
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Extra Lapis English 14:58-59
Zircon
Formula: Zr(SiO4)
Reference: Rocks & Minerals (1955) 30:464-471

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Gold1.AA.05Au
Iridium1.AF.10(Ir,Os,Ru)
var: Osmiridium1.AF.10(Ir,Os,Ru)
Platinum1.AF.10Pt
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Chrysoberyl4.BA.05BeAl2O4
var: Alexandrite4.BA.05BeAl2O4
Corundum4.CB.05Al2O3
var: Ruby4.CB.05Al2O3
var: Sapphire4.CB.05Al2O3
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
Rutile4.DB.05TiO2
Group 8 - Phosphates, Arsenates and Vanadates
Gorceixite8.BL.10BaAl3(PO4)(PO3OH)(OH)6
Group 9 - Silicates
Andalusite9.AF.10Al2(SiO4)O
Beryl9.CJ.05Be3Al2(Si6O18)
var: Emerald9.CJ.05Be3Al2(Si6O18)
Kyanite9.AF.15Al2(SiO4)O
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Topaz9.AF.35Al2(SiO4)(F,OH)2
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Garnet Group'-X3Z2(SiO4)3
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Platinum Group Metals and Alloys
Iridium1.2.1.2(Ir,Os,Ru)
Platinum1.2.1.1Pt
Semi-metals and non-metals
Diamond1.3.6.1C
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Chrysoberyl7.2.9.1BeAl2O4
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq·xH2O
Gorceixite42.7.3.2BaAl3(PO4)(PO3OH)(OH)6
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Andalusite52.2.2b.1Al2(SiO4)O
Kyanite52.2.2c.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Beryl
var: Emerald
-Be3Al2(Si6O18)
Chrysoberyl
var: Alexandrite
-BeAl2O4
Corundum
var: Ruby
-Al2O3
var: Sapphire-Al2O3
'Garnet Group'-X3Z2(SiO4)3
Iridium
var: Osmiridium
-(Ir,Os,Ru)
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
Quartz
var: Chalcedony
-SiO2
var: Jasper-SiO2
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H TopazAl2(SiO4)(F,OH)2
H StauroliteFe22+Al9Si4O23(OH)
H GorceixiteBaAl3(PO4)(PO3OH)(OH)6
H Limonite(Fe,O,OH,H2O)
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be ChrysoberylBeAl2O4
Be BerylBe3Al2(Si6O18)
Be Chrysoberyl (var: Alexandrite)BeAl2O4
Be Beryl (var: Emerald)Be3Al2(Si6O18)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C DiamondC
OOxygen
O ChrysoberylBeAl2O4
O TopazAl2(SiO4)(F,OH)2
O Garnet GroupX3Z2(SiO4)3
O IlmeniteFe2+TiO3
O StauroliteFe22+Al9Si4O23(OH)
O RutileTiO2
O QuartzSiO2
O GorceixiteBaAl3(PO4)(PO3OH)(OH)6
O Corundum (var: Sapphire)Al2O3
O AndalusiteAl2(SiO4)O
O BerylBe3Al2(Si6O18)
O Quartz (var: Chalcedony)SiO2
O ChromiteFe2+Cr23+O4
O K Feldspar (var: Adularia)KAlSi3O8
O KyaniteAl2(SiO4)O
O Limonite(Fe,O,OH,H2O)
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O ZirconZr(SiO4)
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Corundum (var: Ruby)Al2O3
O Chrysoberyl (var: Alexandrite)BeAl2O4
O Beryl (var: Emerald)Be3Al2(Si6O18)
O CorundumAl2O3
FFluorine
F TopazAl2(SiO4)(F,OH)2
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al ChrysoberylBeAl2O4
Al TopazAl2(SiO4)(F,OH)2
Al StauroliteFe22+Al9Si4O23(OH)
Al GorceixiteBaAl3(PO4)(PO3OH)(OH)6
Al Corundum (var: Sapphire)Al2O3
Al AndalusiteAl2(SiO4)O
Al BerylBe3Al2(Si6O18)
Al K Feldspar (var: Adularia)KAlSi3O8
Al KyaniteAl2(SiO4)O
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al Corundum (var: Ruby)Al2O3
Al Chrysoberyl (var: Alexandrite)BeAl2O4
Al Beryl (var: Emerald)Be3Al2(Si6O18)
Al CorundumAl2O3
SiSilicon
Si TopazAl2(SiO4)(F,OH)2
Si Garnet GroupX3Z2(SiO4)3
Si StauroliteFe22+Al9Si4O23(OH)
Si QuartzSiO2
Si AndalusiteAl2(SiO4)O
Si BerylBe3Al2(Si6O18)
Si Quartz (var: Chalcedony)SiO2
Si K Feldspar (var: Adularia)KAlSi3O8
Si KyaniteAl2(SiO4)O
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si ZirconZr(SiO4)
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si Beryl (var: Emerald)Be3Al2(Si6O18)
PPhosphorus
P GorceixiteBaAl3(PO4)(PO3OH)(OH)6
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe IlmeniteFe2+TiO3
Fe StauroliteFe22+Al9Si4O23(OH)
Fe ChromiteFe2+Cr23+O4
Fe Limonite(Fe,O,OH,H2O)
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
ZrZirconium
Zr ZirconZr(SiO4)
RuRuthenium
Ru Iridium (var: Osmiridium)(Ir,Os,Ru)
BaBarium
Ba GorceixiteBaAl3(PO4)(PO3OH)(OH)6
OsOsmium
Os Iridium (var: Osmiridium)(Ir,Os,Ru)
IrIridium
Ir Iridium (var: Osmiridium)(Ir,Os,Ru)
Ir Iridium(Ir,Os,Ru)
PtPlatinum
Pt PlatinumPt
AuGold
Au GoldAu

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 833.
Oberthür, T., Weiser, T.W., Gast, L., Schoenberg, R., and Davis, D.W. (2002) Platinum-group minerals and other detrital components in the Karoo-age Somabula gravels, Gweru, Zimbabwe. Canadian Mineralogist: 40: 435-456.
Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa.

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