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Gujba meteorite, Bogga Dingare, Yobe, Nigeriai
Regional Level Types
Gujba meteoriteMeteorite Fall Location
Bogga Dingare- not defined -
YobeState
NigeriaCountry

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Key
Latitude & Longitude (WGS84):
11° 29' 30'' North , 11° 39' 30'' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Nearest Settlements:
PlacePopulationDistance
Daura78,277 (2018)28.3km
Gujba11,359 (2016)30.0km
Damaturu46,000 (2016)43.5km


Bencubbin-like Carbonaceous Chondrite [CBa; S2; W0]
Disaggregated stones with conspicuous metal and silicate nodules


In the early evening of April 3, 1984 the meteorite fell in a corn field near the village of Bogga Dingare after a bright fireball was seen with an explosion. Local people hammered the meteorite into many pieces, and most of the material was dispersed. The original mass may have been ~100 kg, but only 12 kg is accounted for. Various pieces have passed thru many hands with inconsistent amounts of weathering. Gujba is the only known CBa fall, but its nature was not known until the CB group had been formally defined using Bencubbin as a prototype. Members of the CBa subgroup are distinguished by their chondrule-like silicates, abundant metal, and virtual lack of refractory inclusions.

The CB group is somewhat of an outlier among Carbonaceous Chondrites, but its chemical affinities to other Carbonaceous and, most especially, its oxygen isotope peculiarities, place it clearly within the larger grouping’s defined boundaries.

Regions containing this locality

African PlateTectonic Plate
West AfricaUN Subregion

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


11 valid minerals.

Meteorite/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!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Weisberg, M. K.; Boesenberg, J. S.; Ebel, D. S. (2002). Gujba and Origin of the Bencubbin-like (CB) Chondrites. 33rd Annual Lunar and Planetary Science Conference, March 11-15, 2002, Houston, Texas, abstract no.1551. (March 2002).
Augite var: Fassaite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Reference: Weisberg, M. K.; Boesenberg, J. S.; Ebel, D. S. (2002). Gujba and Origin of the Bencubbin-like (CB) Chondrites. 33rd Annual Lunar and Planetary Science Conference, March 11-15, 2002, Houston, Texas, abstract no.1551. (March 2002).
Coesite
Formula: SiO2
Reference: Weisberg, M.K. & Kimura, M. (2010). Petrology and Raman spectroscopy of high pressure phases in the Gujba CB chondrite and the shock history of the CB parent body. Meteoritics & Planetary Science Volume 45, Issue 5, pages 873–884. (May 2010); Weisberg, M. K.; Kimura, M.; Suzuki, A.; Ohtani, E.; Sugiura, N. (2006). 37th Annual Lunar and Planetary Science Conference, March 13-17, 2006, League City, Texas, abstract no.1788. (March 2006).
Diamond
Formula: C
Reference: Garvie, L. A. J.; Németh, P.; Buseck, P. R. (2011). Diamond, Bucky-Diamond, Graphite-Diamond, Al-Silicate, and Stishovite in the Gujba CB Chondrite. 74th Annual Meeting of the Meteoritical Society, held August 8-12, 2011 in London, UK. Published in Meteoritics and Planetary Science Supplement, id. #5227.
'Fayalite-Forsterite Series'
Reference: Grossman, J. N. & Zipfel, J. (2001). The Meteoritical Bulletin, No. 85, 2001 September. Meteoritics & Planetary Science vol.36, #9 (Supplement), pp. A293-A322. (Sept 2001).
Graphite
Formula: C
Reference: Garvie, L. A. J.; Németh, P.; Buseck, P. R. (2011). Diamond, Bucky-Diamond, Graphite-Diamond, Al-Silicate, and Stishovite in the Gujba CB Chondrite. 74th Annual Meeting of the Meteoritical Society, held August 8-12, 2011 in London, UK. Published in Meteoritics and Planetary Science Supplement, id. #5227.
Iron
Formula: Fe
Reference: Rubin, A.E.; Kallemeyn, G.W.; Wasson, J.T.; Clayton, R.N.; Mayeda, T.K.; Grady, M.M. and Verchovsky, A.B. (2001). Gujba: A new Bencubbin-like meteorite fall from Nigeria. In: 32nd Lunar and Planetary Science Conference, 12-16 March 2001, Houston, Texas, USA.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Rubin, A.E.; Kallemeyn, G.W.; Wasson, J.T.; Clayton, R.N.; Mayeda, T.K.; Grady, M.M. and Verchovsky, A.B. (2001). Gujba: A new Bencubbin-like meteorite fall from Nigeria. In: 32nd Lunar and Planetary Science Conference, 12-16 March 2001, Houston, Texas, USA.
Majorite
Formula: Mg3(Fe2+,Si,Al)2(SiO4)3
Reference: Weisberg, M.K. & Kimura, M. (2010). Petrology and Raman spectroscopy of high pressure phases in the Gujba CB chondrite and the shock history of the CB parent body. Meteoritics & Planetary Science Volume 45, Issue 5, pages 873–884. (May 2010)
'Melilite Group'
Formula: Ca2M(XSiO7)
Reference: Weisberg, M. K.; Boesenberg, J. S.; Ebel, D. S. (2002). Gujba and Origin of the Bencubbin-like (CB) Chondrites. 33rd Annual Lunar and Planetary Science Conference, March 11-15, 2002, Houston, Texas, abstract no.1551. (March 2002).
'Pyroxene Group'
Reference: Grossman, J. N. & Zipfel, J. (2001). The Meteoritical Bulletin, No. 85, 2001 September. Meteoritics & Planetary Science vol.36, #9 (Supplement), pp. A293-A322. (Sept 2001).
Quartz
Formula: SiO2
Reference: Weisberg, M. K.; Kimura, M.; Suzuki, A.; Ohtani, E.; Sugiura, N. (2006). 37th Annual Lunar and Planetary Science Conference, March 13-17, 2006, League City, Texas, abstract no.1788. (March 2006).
Spinel
Formula: MgAl2O4
Reference: Rubin, A.E.; Kallemeyn, G.W.; Wasson, J.T.; Clayton, R.N.; Mayeda, T.K.; Grady, M.M. and Verchovsky, A.B. (2001). Gujba: A new Bencubbin-like meteorite fall from Nigeria. In: 32nd Lunar and Planetary Science Conference, 12-16 March 2001, Houston, Texas, USA.
Stishovite
Formula: SiO2
Reference: Garvie, L. A. J.; Németh, P.; Buseck, P. R. (2011). Diamond, Bucky-Diamond, Graphite-Diamond, Al-Silicate, and Stishovite in the Gujba CB Chondrite. 74th Annual Meeting of the Meteoritical Society, held August 8-12, 2011 in London, UK. Published in Meteoritics and Planetary Science Supplement, id. #5227.
Troilite
Formula: FeS
Reference: Grossman, J. N. & Zipfel, J. (2001). The Meteoritical Bulletin, No. 85, 2001 September. Meteoritics & Planetary Science vol.36, #9 (Supplement), pp. A293-A322. (Sept 2001).
Wadsleyite
Formula: (Mg,Fe2+)2(SiO4)
Reference: Weisberg, M.K. & Kimura, M. (2010). Petrology and Raman spectroscopy of high pressure phases in the Gujba CB chondrite and the shock history of the CB parent body. Meteoritics & Planetary Science Volume 45, Issue 5, pages 873–884. (May 2010)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Graphite1.CB.05aC
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Coesite4.DA.35SiO2
Quartz4.DA.05SiO2
Spinel4.BB.05MgAl2O4
Stishovite4.DA.40SiO2
Group 9 - Silicates
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
var: Fassaite9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Majorite9.AD.25Mg3(Fe2+,Si,Al)2(SiO4)3
Wadsleyite9.BE.02(Mg,Fe2+)2(SiO4)
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-
'Melilite Group'-Ca2M(XSiO7)
'Pyroxene Group'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Semi-metals and non-metals
Diamond1.3.6.1C
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 4 - SIMPLE OXIDES
AX2
Stishovite4.4.1.9SiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Wadsleyite51.3.4.1(Mg,Fe2+)2(SiO4)
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Majorite51.4.3a.5Mg3(Fe2+,Si,Al)2(SiO4)3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Coesite75.1.4.1SiO2
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Augite
var: Fassaite
-(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
'Fayalite-Forsterite Series'-
Iron-Fe
'Melilite Group'-Ca2M(XSiO7)
'Pyroxene Group'-

List of minerals for each chemical element

CCarbon
C DiamondC
C GraphiteC
OOxygen
O CoesiteSiO2
O MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
O SpinelMgAl2O4
O Wadsleyite(Mg,Fe2+)2(SiO4)
O Melilite GroupCa2M(XSiO7)
O Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
O QuartzSiO2
O StishoviteSiO2
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
NaSodium
Na Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
MgMagnesium
Mg MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
Mg SpinelMgAl2O4
Mg Wadsleyite(Mg,Fe2+)2(SiO4)
Mg Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
AlAluminium
Al SpinelMgAl2O4
Al Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
SiSilicon
Si CoesiteSiO2
Si MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
Si Wadsleyite(Mg,Fe2+)2(SiO4)
Si Melilite GroupCa2M(XSiO7)
Si Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Si QuartzSiO2
Si StishoviteSiO2
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
SSulfur
S TroiliteFeS
CaCalcium
Ca Melilite GroupCa2M(XSiO7)
Ca Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
TiTitanium
Ti Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
FeIron
Fe TroiliteFeS
Fe Wadsleyite(Mg,Fe2+)2(SiO4)
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Augite (var: Fassaite)(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Fe IronFe
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Grossman, J. N. & Zipfel, J. (2001). The Meteoritical Bulletin, No. 85, 2001 September. Meteoritics & Planetary Science:36(9) (supplement): A293-A322. (September, 2001).
Rubin, A.E., Kallemeyn, G.W., Wasson, J.T., Clayton, R.N., Mayeda, T.K., Grady, M.M. and Verchovsky, A.B. (2001). Gujba: A new Bencubbin-like meteorite fall from Nigeria. In: 32nd Lunar and Planetary Science Conference, 12-16 March 2001, Houston, Texas, USA.
Weisberg, M.K. & Kimura, M. (2010). Petrology and Raman spectroscopy of high pressure phases in the Gujba CB chondrite and the shock history of the CB parent body. Meteoritics & Planetary Science: 45(5): 873–884. (May 2010).

External Links

http://www.lpi.usra.edu/meteor/metbull.php (Meteoritical Society’s “Meteoritical Society Database”)


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