Gujba meteorite, Bogga Dingare, Yobe, Nigeriai
| Regional Level Types | |
|---|---|
| Gujba meteorite | Meteorite Fall Location |
| Bogga Dingare | - not defined - |
| Yobe | State |
| Nigeria | Country |
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Latitude & Longitude (WGS84):
11° 29' 30'' North , 11° 39' 30'' East
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
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.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
11 valid minerals.
Meteorite/Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed 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(MgSi)(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' Formula: ADSi2O6 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: Mg4O(Si2O7) 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) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Diamond | 1.CB.10a | C |
| ⓘ | Graphite | 1.CB.05a | C |
| ⓘ | Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Troilite | 2.CC.10 | FeS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Coesite | 4.DA.35 | SiO2 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | Stishovite | 4.DA.40 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | var. Fassaite | 9.DA.15 | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| ⓘ | Majorite | 9.AD.25 | Mg3(MgSi)(SiO4)3 |
| ⓘ | Wadsleyite | 9.BE.02 | Mg4O(Si2O7) |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Melilite Group' | - | Ca2M(XSiO7) |
| ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Diamond | C |
| C | ⓘ Graphite | C |
| O | Oxygen | |
| O | ⓘ Pyroxene Group | ADSi2O6 |
| O | ⓘ Coesite | SiO2 |
| O | ⓘ Majorite | Mg3(MgSi)(SiO4)3 |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Wadsleyite | Mg4O(Si2O7) |
| O | ⓘ Melilite Group | Ca2M(XSiO7) |
| O | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Stishovite | SiO2 |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Na | Sodium | |
| Na | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Mg | Magnesium | |
| Mg | ⓘ Majorite | Mg3(MgSi)(SiO4)3 |
| Mg | ⓘ Spinel | MgAl2O4 |
| Mg | ⓘ Wadsleyite | Mg4O(Si2O7) |
| Mg | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Al | Aluminium | |
| Al | ⓘ Spinel | MgAl2O4 |
| Al | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Si | Silicon | |
| Si | ⓘ Pyroxene Group | ADSi2O6 |
| Si | ⓘ Coesite | SiO2 |
| Si | ⓘ Majorite | Mg3(MgSi)(SiO4)3 |
| Si | ⓘ Wadsleyite | Mg4O(Si2O7) |
| Si | ⓘ Melilite Group | Ca2M(XSiO7) |
| Si | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Stishovite | SiO2 |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| S | Sulfur | |
| S | ⓘ Troilite | FeS |
| Ca | Calcium | |
| Ca | ⓘ Melilite Group | Ca2M(XSiO7) |
| Ca | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ti | Titanium | |
| Ti | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Fe | Iron | |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Fe | ⓘ Iron | Fe |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ni | Nickel | |
| Ni | ⓘ Iron var. Kamacite | (Fe,Ni) |
References
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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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Gujba meteorite, Bogga Dingare, Yobe, Nigeria