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Steingarden Nunataks 07015 meteorite, Steingarden Nunataks site, Queen Maud Land, Eastern Antarctica, Antarcticai
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Latitude & Longitude (WGS84):
72° 19' 50'' South , 16° 5' 16'' East
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Deposit first discovered:
2007
Köppen climate type:
Other/historical names associated with this locality:
STG 07015
Official name: Steingarden Nunataks 07015
Abbreviation: STG 07015
Observed fall: no
Found: 2007
Coordinates (Meteoritical Bulletin 102): 72°19.849' S, 16°5.266' E
Recovered weight: 5.09 g
L6 chondrite, shock stage S3, weathering grade W1
The find site is near an ice rise loosely covered with rock fragments (Delisle et al., 2015).
The meteorite is a small stone covered by a thick black fusion crust. The light grey interior exposed on a broken surface is in places rusty and exhibits some dispersed metal/sulfide grains. Chondrules are not visible at sight. The meteorite under a microsope exhibits a strongly recrystallized texture. Well-defined chondrules are lacking and only a few relic chondrules are discernible. Twinned clinopyroxene is absent. The apparent diametre of plagioclase crystals is > 50 μm. 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. Weathering effects are intense limonitic staining, 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 Fa28.4 References: |
| ⓘ 'Low-calcium pyroxene' Description: Average composition Wo1.5±0.1Fs21.3±0.2 References: |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| Unclassified | |||
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Low-calcium pyroxene' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Forsterite | Mg2SiO4 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Forsterite | Mg2SiO4 |
| Al | Aluminium | |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Forsterite | Mg2SiO4 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
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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