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Steingarden Nunataks 07008 meteorite, Steingarden Nunataks site, Queen Maud Land, Eastern Antarctica, Antarcticai
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Latitude & Longitude (WGS84):
72° 17' 26'' South , 16° 2' 8'' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Deposit first discovered:
2007
Köppen climate type:
Other/historical names associated with this locality:
STG 07008
Official name: Steingarden Nunataks 07008
Abbreviation: STG 07008
Observed fall: no
Found: 2007
Coordinates (Meteoritical Bulletin 102): 72°17.458' S, 16°2.14' E
Recovered weight: 225.12 g
H4 chondrite, shock stage S3, weathering grade W1
The find site, downstream of the major concentration site of stony meteorites, is located on the western shoulder of an elongated S-N trending ice depression (Delisle et al., 2015).
The meteorite is a brown stone partly covered by black fusion crust. The cut surface exhibits a greyish-brown interior with numerous finely dispersed metal grains. In places, well-defined chondrules are visible. Chondrules (up to ~ 2 mm) with well-defined boundaries set into a recrystallized matrix are observable in thin section. In places, the chondrule mesostasis consists of very fine-grained recrystallized glass. Grains of twinned clinopyroxene are common. Shock metamorphic features comprising undulatory extinction of olivine and pyroxene, and the presence of planar fractures in olivine indicate that the meteorite is weakly shocked. Despite intense limonitic staining, weathering is restricted to minor oxide rims around metal and minor oxide veins.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
1 valid mineral.
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:
| ⓘ Forsterite Formula: Mg2SiO4 Description: Average composition of olivine Fa18.9 References: |
| ⓘ 'Glass' |
| ⓘ 'Low-calcium pyroxene' Description: Average composition Wo0.8±0.1Fs16.3±0.2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| Unclassified | |||
| ⓘ | 'Glass' | - | |
| ⓘ | 'Low-calcium pyroxene' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Forsterite | Mg2SiO4 |
| Mg | Magnesium | |
| Mg | ⓘ Forsterite | Mg2SiO4 |
| Si | Silicon | |
| Si | ⓘ Forsterite | Mg2SiO4 |
Other Regions, Features and Areas containing this locality
Antarctic MeteoritesGroup of Meteorite Fall Locations
Antarctic PlateTectonic Plate
- Tonian Oceanic Arc TerraneVolcanic Arc
Antarctica
- Transantarctic MountainsMountain Range
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