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Chupaderos meteorite, Jiménez Municipality, Chihuahua, Mexicoi
Regional Level Types
Chupaderos meteoriteMeteorite Fall Location
Jiménez MunicipalityMunicipality
ChihuahuaState
MexicoCountry

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Key
Latitude & Longitude (WGS84):
27° 0' North , 105° 6' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Santa Ana de Abajo216 (2013)5.7km
Octaviano López2,148 (2014)6.6km
Santa María602 (2014)9.2km
Francisco I. Madero129 (2014)10.7km
Emiliano Zapata164 (2013)14.2km


Iron meteorite (IIIAB, Om)
Find, 1852; 24.3 t, 3 large masses

Two enormous iron masses (~9.9% Ni) of 14.114 and 6.676 tons were found only 250 meters apart about 25 km from Jimenez. Additional separated masses, including the 3.4 ton 'Adargas' mass found 40 km away, were subsequently identified as fragments of the same original fall. The dimensions of the largest 3 pieces (~265 x 220 x 90 cm; 175 x 175 x 65 cm; 155 x 85 x 85 cm, resp.) provide a sense of the enormous masses involved. While formally the meteorite is predominantly kamacite and taenite, about 50% of the meteorite's volume is taken up by dark plessite fields. Schreibersite, often brecciated, is common as branched lamellae and skeleton crystals accounting for ~0.5 vol%. Troilite nodules (15-40 mm in diameter) often display conical and subcylindrical forms. Several features, including microcrystalline aggregates of troilite and fractured schreibersite grains indicate that the meteorite experience serious shock melting either in preterrestrial collisions and/or during its rude impact with the earth. Among the very minor phases are some unusual Mn-bearing phosphates associated with schreibersite, troilite, Fe-Ni metal, and chromite. The general characteristics of all three large masses are virtually identical although some systematic gradients have been observed in trace elements.

The 3 largest masses have been held near the Palace of Bellas Artes in Mexico City. A 'Cuernavaca' fragment of the 'Adargas' mass is held at the National Museum, also in Mexico City. Portions of the separated masses, mostly distributed under the names of Adargas and Cuernavaca, are found in small and moderate-size masses (up to 28 kg) throughout the Americas, Europe, and India.

Chupaderos was the 2nd most massive of 306 IIAB iron meteorites listed with the Meteoritical Bulletin Database in September 2015). Among the IIIAB Irons only the 58 ton Cape York iron is more massive. Twenty-two IIIAB irons have been recovered from Mexico — 5 of them with masses > one ton. Like Chupaderos, the 10.1 ton Morito and 1.55 ton Casas Grandes IIIAB irons were also recovered in Chihuahua.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 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:

Chromite
Formula: Fe2+Cr3+2O4
Reference: Olsen, E.; Steele, I. (1993) New Alkali Phosphates and Their Associations in the IIIAB Iron Meteorites. Meteoritics: 28(3): 415-415.
Graftonite
Formula: Fe2+Fe2+2(PO4)2
Reference: Olsen, E.; Steele, I. (1993) New Alkali Phosphates and Their Associations in the IIIAB Iron Meteorites. Meteoritics: 28(3): 415-415.; Olsen, E. & Fredriksson, K. (1966) Phosphates in iron and pallasite meteorites: Geochimica et Cosmochimica Acta 30(5): 459-470. (May 1966)
Iron
Formula: Fe
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Iron var: Martensite
Formula: Fe
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Johnsomervilleite
Formula: Na10Ca6Mg18Fe25(PO4)36
Reference: Olsen, E.; Steele, I. (1993) New Alkali Phosphates and Their Associations in the IIIAB Iron Meteorites. Meteoritics: 28(3): 415-415.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
'Plessite'
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Sarcopside
Formula: (Fe2+,Mn2+,Mg)3(PO4)2
Description: Coexisting with schreibersite, troilite, and Fe-Ni metal.
Reference: Olsen, E. & Fredriksson, K. (1966) Phosphates in iron and pallasite meteorites: Geochimica et Cosmochimica Acta 30(5): 459-470. (May 1966)
Schreibersite
Formula: (Fe,Ni)3P
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Taenite
Formula: (Fe,Ni)
Reference: Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Troilite
Formula: FeS
Reference: Olsen, E.; Steele, I. (1993) New Alkali Phosphates and Their Associations in the IIIAB Iron Meteorites. Meteoritics: 28(3): 415-415.; Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Iron1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
var: Martensite1.AE.05Fe
Schreibersite1.BD.05(Fe,Ni)3P
Taenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Group 8 - Phosphates, Arsenates and Vanadates
Graftonite8.AB.20Fe2+Fe2+2(PO4)2
Johnsomervilleite8.AC.50Na10Ca6Mg18Fe25(PO4)36
Sarcopside8.AB.15(Fe2+,Mn2+,Mg)3(PO4)2
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Plessite'-

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)
Schreibersite1.1.21.2(Fe,Ni)3P
Taenite1.1.11.2(Fe,Ni)
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
(AB)5(XO4)3
Johnsomervilleite38.2.5.2Na10Ca6Mg18Fe25(PO4)36
(AB)3(XO4)2
Graftonite38.3.3.1Fe2+Fe2+2(PO4)2
Sarcopside38.3.1.1(Fe2+,Mn2+,Mg)3(PO4)2
Unclassified Minerals, Mixtures, etc.
Iron-Fe
var: Martensite-Fe
'Limonite'-(Fe,O,OH,H2O)
'Plessite'-

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
OOxygen
O GraftoniteFe2+Fe22+(PO4)2
O JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
O ChromiteFe2+Cr23+O4
O Limonite(Fe,O,OH,H2O)
O Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2
NaSodium
Na JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
MgMagnesium
Mg JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
PPhosphorus
P GraftoniteFe2+Fe22+(PO4)2
P JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
P Schreibersite(Fe,Ni)3P
P Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2
SSulfur
S TroiliteFeS
CaCalcium
Ca JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe TroiliteFeS
Fe GraftoniteFe2+Fe22+(PO4)2
Fe JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
Fe ChromiteFe2+Cr23+O4
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Limonite(Fe,O,OH,H2O)
Fe Iron (var: Martensite)Fe
Fe Schreibersite(Fe,Ni)3P
Fe Taenite(Fe,Ni)
Fe Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2
Fe IronFe
NiNickel
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Schreibersite(Fe,Ni)3P
Ni Taenite(Fe,Ni)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Olsen, E. & Fredriksson, K. (1966) Phosphates in iron and pallasite meteorites: Geochimica et Cosmochimica Acta 30(5): 459-470. (May 1966)
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Olsen, E. & Steele, I. (1993) New Alkali Phosphates and Their Associations in the IIIAB Iron Meteorites: Meteoritics 28 (3): p. 415. (July1993).
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
Chen, J.H., Papanastassiou, D.A. & Wasserburg, G.J. (2002) Re-Os and Pd-Ag systematics in Group IIIAB irons and in pallasites: Geochimica et Cosmochimica Acta 66 (21): 3793-3810. (Nov 2002).
Grady, M.M., Pratesi, G. & Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press: Cambridge, United Kingdom. 373 pages.

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