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Santiago Papasquiero meteorite, Santiago Papasquiaro Municipality, Durango, Mexicoi
| Regional Level Types | |
|---|---|
| Santiago Papasquiero meteorite | Meteorite Fall Location |
| Santiago Papasquiaro Municipality | Municipality |
| Durango | State |
| Mexico | Country |
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Latitude & Longitude (WGS84):
24° 30' North , 106° 0' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| San Francisco de los Lobos | 132 (2018) | 7.7km |
| Cuevecillas | 177 (2014) | 8.5km |
| San Antonio de las Truchas | 192 (2018) | 8.9km |
| San Ignacio de Huapipuje | 138 (2014) | 9.8km |
| Los Cardos | 173 (2018) | 13.8km |
Iron meteorite, ungrouped ataxite (Iron, ung., D)
Find, 1958; 119.5 kg, single mass
Santiago Papasquiero, an unusual ataxite (7.5% Ni) was found about 135 km SW of the village of Santiago Papasquiero. Before cutting, the 50 x 30 x 20 cm mass had a mass of ~130 kg. The rusty exterior was partially covered with caliche and any remnants of a fusion crust were gone. In places limonite stains have penetrated into the interior where the kamacite has been preferentially attacked by terrestrial weathering. The interior is quite unusual — texturally, chemically, and mineralogically. Recrystallized kamacite, lacking any signs of an expected Widmanstätten pattern for an iron of this composition, is accompanied by dispersed taenite. Sulfide is quite evident, both as troilite and even as widely dispersed daubréelite. However, there are no signs of schreibersite (or, carbides). Indeed, the amount of phosphorous in the meteorite is exceedingly low in this both chemically and structurally anomalous ungrouped iron.
Santiago Papasquiero is one of 117 ungrouped iron meteorites listed with the Meteoritical Bulletin Database as of early September 2015. For several decades the main mass was held by Arizona State University in Tempe.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 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:
| ⓘ Daubréelite Formula: Fe2+Cr3+2S4 Description: Common and often brecciated in both kamacite and troilite. |
| ⓘ 'Limonite' Description: Often forms a prominent background for undissolved taenite grains. |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ Taenite Formula: (Fe,Ni) Description: As a multitude of annealed taenite particles (30% Ni). |
| ⓘ Troilite Formula: FeS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Troilite | 2.CC.10 | FeS |
| ⓘ | Daubréelite | 2.DA.05 | Fe2+Cr3+2S4 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Daubréelite | Fe2+Cr23+S4 |
| S | ⓘ Troilite | FeS |
| Cr | Chromium | |
| Cr | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Fe | Iron | |
| Fe | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Fe | ⓘ Native Iron | Fe |
| Fe | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Troilite | FeS |
| Ni | Nickel | |
| Ni | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Taenite | (Fe,Ni) |
Other Regions, Features and Areas containing this locality
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