Ivuna meteorite, Mbeya Region, Tanzania (original) (raw)

Ivuna meteorite, Mbeya Region, Tanzaniai

Regional Level Types
Ivuna meteorite Meteorite Fall Location
Mbeya Region Region
Tanzania Country

Latitude & Longitude (WGS84):

8° 25' 0'' South , 32° 25' 59'' East

Latitude & Longitude (decimal):

Meteoritical Society Class:

Deposit first discovered:

1938

Nearest Settlements:

Place Population Distance
Laela 19,185 (2018) 45.3km

Mindat Locality ID:

252950

Long-form identifier:

mindat:1:2:252950:2

dbee83bb-3cd6-44aa-ac0d-6b6c5a41ddb2

The Ivuna (CI1) meteorite fell on 16 Dec 1938. A single stone of 704.5 g was recovered of the 2 or 3 which fell. Ivuna is the prototype for the CI (Ivuna-like) Carbonaceous Chondrites. It is one of 5 known CI falls and 4 CI finds. At the present time all 9 CI chondrites are classified as having petrologic type CI1.

Like all carbonaceous chondrite, Ivuna and other CI carbonaceous chondrites have nearly solar Mg/Si ratios and similar oxygen isotope ratios. In addition, Ivuna and other members of the CI chemical group are distinguished by the absence of chondrules and a high degree of hydration.

Because of Ivuna’s very small mass, other more massive CI1 falls (such as Orgueil) are more frequently utilized for research.

Select Mineral List Type

Standard Detailed Gallery Strunz

Chemical Elements

Mineral List

18 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 Diagram

Entries shown in red are rocks recorded for this region.

Detailed Mineral List:

ⓘ BlöditeFormula: Na2Mg(SO4)2 · 4H2OReferences: Mason, Brian (1962) Meteorites. John Wiley and Sons, Inc.: New York & London, 274 pages.
ⓘ CalciteFormula: CaCO3References: Endress, M., Bischoff, A. (1993) Mineralogy, Degree of Brecciation, and Aqueous Alteration of CI Chondrites Orgueil, Ivuna, and Alais. Meteoritics: 28(3): 345-346.
ⓘ ChromiteFormula: Fe2+Cr3+2O4References: Endress, M., Bischoff, A. (1993) Mineralogy, Degree of Brecciation, and Aqueous Alteration of CI Chondrites Orgueil, Ivuna, and Alais. Meteoritics: 28(3): 345-346.
ⓘ CubaniteFormula: CuFe2S3References: Kerridge, J.F., MacDougall, J.D., Marti, K. (1979) Clues to the origin of sulfide minerals in CI chondrites. Earth and Planetary Science Letters: 43(3): 359-367.
ⓘ DiamondFormula: CReferences: Laurance, A.J. Garvie, Buseck, Peter R. (2007) Prebiotic carbon in clays from Orguril and Ivuna (CI). Meteoritics & Planetary Science: 42(12): 2111-2117.
ⓘ DolomiteFormula: CaMg(CO3)2References: Mason, Brian (1962) Meteorites. John Wiley and Sons, Inc.: New York & London, 274 pages.
ⓘ EpsomiteFormula: MgSO4 · 7H2OReferences: Wood, John A. (1977) Mineralogic and petrologic study of the low-temperature minerals in carbonaceous chondrites. Final Report, Smithsonian Astrophysical Observatory, Cambridge, MA.
ⓘ 'Fayalite-Forsterite Series'References: Endress, M., Bischoff, A. (1993) Mineralogy, Degree of Brecciation, and Aqueous Alteration of CI Chondrites Orgueil, Ivuna, and Alais. Meteoritics: 28(3): 345-346.
ⓘ GrossmaniteFormula: CaTi3+ AlSiO6References: Frank, D., Zolensky, M., Martinez, J., Mikouchi, T., Ohsumi, K., Hagiya, K., Satake, W., Le, L., Ross, D., Peslier, A. (2011) A CAI in the Ivuna CI1 Chondrite. 42nd Lunar and Planetary Science Conference. LPI Contribution #1608: 2785.
ⓘ GypsumFormula: CaSO4 · 2H2OReferences: Wood, John A. (1977) Mineralogic and petrologic study of the low-temperature minerals in carbonaceous chondrites. Final Report, Smithsonian Astrophysical Observatory, Cambridge, MA.
ⓘ IlmeniteFormula: Fe2+TiO3References: Endress, M., Bischoff, A. (1993) Mineralogy, Degree of Brecciation, and Aqueous Alteration of CI Chondrites Orgueil, Ivuna, and Alais. Meteoritics: 28(3): 345-346.
ⓘ MagnesiteFormula: MgCO3References: Endress, M., Bischoff, A. (1993) Mineralogy, Degree of Brecciation, and Aqueous Alteration of CI Chondrites Orgueil, Ivuna, and Alais. Meteoritics: 28(3): 345-346.
ⓘ Magnesite var. BreunneriteFormula: (Mg,Fe)CO3References: Endress, M., Bischoff, A. (1993) Mineralogy, Degree of Brecciation, and Aqueous Alteration of CI Chondrites Orgueil, Ivuna, and Alais. Meteoritics: 28(3): 345-346.
ⓘ MagnetiteFormula: Fe2+Fe3+2O4References: Brearley, Adrian J. (1992) Mineralogy of fine-grained matrix in the Ivuna CI Carbonaceous Chondrite. Lunar and Planetary Science Conference 1992.
ⓘ 'Melilite Group'Formula: Ca2M(XSiO7)References: Frank, D., Zolensky, M., Martinez, J., Mikouchi, T., Ohsumi, K., Hagiya, K., Satake, W., Le, L., Ross, D., Peslier, A. (2011) A CAI in the Ivuna CI1 Chondrite. 42nd Lunar and Planetary Science Conference. LPI Contribution #1608: 2785.
ⓘ PentlanditeFormula: (NixFey)Σ9S8References: Brearley, Adrian J. (1992) Mineralogy of fine-grained matrix in the Ivuna CI Carbonaceous Chondrite. Lunar and Planetary Science Conference 1992.
ⓘ 'Pyroxene Group'Formula: ADSi2O6References: Endress, M., Bischoff, A. (1993) Mineralogy, Degree of Brecciation, and Aqueous Alteration of CI Chondrites Orgueil, Ivuna, and Alais. Meteoritics: 28(3): 345-346.
ⓘ PyrrhotiteFormula: Fe1-xSReferences: Kerridge, J.F., MacDougall, J.D., Marti, K. (1979) Clues to the origin of sulfide minerals in CI chondrites. Earth and Planetary Science Letters: 43(3): 359-367.
ⓘ SaponiteFormula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OReferences: Brearley, Adrian J. (1992) Mineralogy of fine-grained matrix in the Ivuna CI Carbonaceous Chondrite. Lunar and Planetary Science Conference 1992.
ⓘ 'Serpentine Subgroup'Formula: D3[Si2O5](OH)4References: Brearley, Adrian J. (1992) Mineralogy of fine-grained matrix in the Ivuna CI Carbonaceous Chondrite. Lunar and Planetary Science Conference 1992.
ⓘ SideriteFormula: FeCO3References: Brearley, A.J., Jones, R.H. (1998) Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA.
ⓘ 'Smectite Group'Formula: A0.3D2-3[T4O10]Z2 · nH2OReferences: Brearley, Adrian J. (1992) Mineralogy of fine-grained matrix in the Ivuna CI Carbonaceous Chondrite. Lunar and Planetary Science Conference 1992.
ⓘ SpinelFormula: MgAl2O4References: Frank, D., Zolensky, M., Martinez, J., Mikouchi, T., Ohsumi, K., Hagiya, K., Satake, W., Le, L., Ross, D., Peslier, A. (2011) A CAI in the Ivuna CI1 Chondrite. 42nd Lunar and Planetary Science Conference. LPI Contribution #1608: 2785.
ⓘ TroiliteFormula: FeSReferences: Mason, Brian (1962) Meteorites. John Wiley and Sons, Inc.: New York & London, 274 pages.

List of minerals for each chemical element

H Hydrogen
H ⓘ Blödite Na2Mg(SO4)2 · 4H2O
H ⓘ Epsomite MgSO4 · 7H2O
H ⓘ Gypsum CaSO4 · 2H2O
H ⓘ Saponite Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
H ⓘ Smectite Group A0.3D2-3[T4O10]Z2 · nH2O
H ⓘ Serpentine Subgroup D3[Si2O5](OH)4
C Carbon
C ⓘ Calcite CaCO3
C ⓘ Diamond C
C ⓘ Dolomite CaMg(CO3)2
C ⓘ Magnesite MgCO3
C ⓘ Siderite FeCO3
C ⓘ Magnesite var. Breunnerite (Mg,Fe)CO3
O Oxygen
O ⓘ Blödite Na2Mg(SO4)2 · 4H2O
O ⓘ Calcite CaCO3
O ⓘ Chromite Fe2+Cr23+O4
O ⓘ Dolomite CaMg(CO3)2
O ⓘ Epsomite MgSO4 · 7H2O
O ⓘ Gypsum CaSO4 · 2H2O
O ⓘ Ilmenite Fe2+TiO3
O ⓘ Magnesite MgCO3
O ⓘ Magnetite Fe2+Fe23+O4
O ⓘ Saponite Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
O ⓘ Siderite FeCO3
O ⓘ Spinel MgAl2O4
O ⓘ Magnesite var. Breunnerite (Mg,Fe)CO3
O ⓘ Pyroxene Group ADSi2O6
O ⓘ Smectite Group A0.3D2-3[T4O10]Z2 · nH2O
O ⓘ Serpentine Subgroup D3[Si2O5](OH)4
O ⓘ Melilite Group Ca2M(XSiO7)
O ⓘ Grossmanite CaTi3+ AlSiO6
Na Sodium
Na ⓘ Blödite Na2Mg(SO4)2 · 4H2O
Mg Magnesium
Mg ⓘ Blödite Na2Mg(SO4)2 · 4H2O
Mg ⓘ Dolomite CaMg(CO3)2
Mg ⓘ Epsomite MgSO4 · 7H2O
Mg ⓘ Magnesite MgCO3
Mg ⓘ Saponite Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Mg ⓘ Spinel MgAl2O4
Mg ⓘ Magnesite var. Breunnerite (Mg,Fe)CO3
Al Aluminium
Al ⓘ Saponite Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Al ⓘ Spinel MgAl2O4
Al ⓘ Grossmanite CaTi3+ AlSiO6
Si Silicon
Si ⓘ Saponite Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Si ⓘ Pyroxene Group ADSi2O6
Si ⓘ Serpentine Subgroup D3[Si2O5](OH)4
Si ⓘ Melilite Group Ca2M(XSiO7)
Si ⓘ Grossmanite CaTi3+ AlSiO6
S Sulfur
S ⓘ Blödite Na2Mg(SO4)2 · 4H2O
S ⓘ Cubanite CuFe2S3
S ⓘ Epsomite MgSO4 · 7H2O
S ⓘ Gypsum CaSO4 · 2H2O
S ⓘ Pentlandite (NixFey)Σ9S8
S ⓘ Pyrrhotite Fe1-xS
S ⓘ Troilite FeS
Ca Calcium
Ca ⓘ Calcite CaCO3
Ca ⓘ Dolomite CaMg(CO3)2
Ca ⓘ Gypsum CaSO4 · 2H2O
Ca ⓘ Saponite Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Ca ⓘ Melilite Group Ca2M(XSiO7)
Ca ⓘ Grossmanite CaTi3+ AlSiO6
Ti Titanium
Ti ⓘ Ilmenite Fe2+TiO3
Ti ⓘ Grossmanite CaTi3+ AlSiO6
Cr Chromium
Cr ⓘ Chromite Fe2+Cr23+O4
Fe Iron
Fe ⓘ Chromite Fe2+Cr23+O4
Fe ⓘ Cubanite CuFe2S3
Fe ⓘ Ilmenite Fe2+TiO3
Fe ⓘ Magnetite Fe2+Fe23+O4
Fe ⓘ Pentlandite (NixFey)Σ9S8
Fe ⓘ Pyrrhotite Fe1-xS
Fe ⓘ Saponite Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Fe ⓘ Siderite FeCO3
Fe ⓘ Troilite FeS
Fe ⓘ Magnesite var. Breunnerite (Mg,Fe)CO3
Ni Nickel
Ni ⓘ Pentlandite (NixFey)Σ9S8
Cu Copper
Cu ⓘ Cubanite CuFe2S3

Other Regions, Features and Areas containing this locality

Africa

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References

Frank, D., M. Zolensky, J. Martinez, T. Mikouchi, K. Ohsumi, K. Hagiya, W. Satake, L. Le, D. Ross & A. Peslier (2011) A CAI in the Ivuna CI1 Chondrite. 42nd Lunar and Planetary Science Conference. LPI Contribution #1608, p. 2785.