Ungrouped Iron Meteorite | NWA 12984 | Coarse-grained octahedrite
42.45 g. | W - Low | S - Low | Octahedrite
€650,00 EUR
- Quantity
- 1
- Condition
- Very Good
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Free to Bulgaria
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Seller Info
- penneff (26 )
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- Registered
- 08.10.2019
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- Score: 26 - Percentage: 100%
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1700, Sofia, Bulgaria
Description
For Sale. A beautiful End-Cut of an ungrouped iron meteorite.
Name: Northwest Africa 12984
Abbreviation: NWA 12984
Observed fall: No
Year found: 2017
Country: Mauritania
Mass: 850 g
Specimen description:
Type, group, subgroup: Iron, Ungrouped
Specimen Weight: 4.30 grams
Approximate Measurements: 30 mm x 16 mm x 2 mm
Very beautiful Iron meteorite. Wonderful sample of Coarse-grained octahedrite. Ideal for any collection, both beginner and advanced collectors. Carefully stabilized and preserved. End Cut of meteorite.
Enjoy this beautiful meteorite.
IMCA #6460 Certified
Additional information:
Northwest Africa 12984 (NWA 12984)
Mauritania
Find: 2017
Pieces: | 1 |
Class: | Iron, ungrouped |
Shock stage: | low |
Weathering grade: | low |
Classification: Iron meteorite (ungrouped)
History: Purchased online in 2017 by George Penneff from a seller in Mauritania.
Physical characteristics: Single stone with dark-brown fusion crust.
Petrography: (D. Sheikh, FSU) Coarse-grained octahedrite having a well-developed Widmanstätten pattern with 1.9-2. 8mm kamacite bands, taenite, and plessite. Troilite nodules present as well.
Geochemistry: (INAA, ActLabs) Ni=70.2 mg/g (DL=0.01 mg/g), Co=4.54 mg/g (DL=0.01 mg/g), Cr=353 µg/g (DL=1 µg/g), Cu=95 µg/g (DL=1 µg/g), Ga=37 µg/g (DL=1 µg/g), Ge=100 µg/g (DL=10 µg/g), As=11.2 µg/g (DL=0.5 µg/g), Re=0.23 µg/g (DL=0.01 µg/g), Ir=2.46 µg/g (DL=0.001 µg/g), Au=1.08 µg/g (DL=0.01 µg/g). Precision at detection limit to be ±100%, at ten times detection limit ±10-20% and at 100 times detection limit ±5%.
Classification: Iron, Ungrouped. Although Ni (70.2 mg/g) and Co (4.54 mg/g) as similar to IAB-MG, Au (1.08 ppm) is lower than that of IAB irons, and so this sample is ungrouped.
Payments & Returns
- Payment Methods
- Direct Payment (PayPal, Revolut)
Postage & Shipping
- Item Location
- 1700, Sofia, Bulgaria
- Ships To
- Worldwide
- Pick-ups
- No pick-ups
- Insurance
- €5,00 EUR
- Shipping Instructions
- -
- Returns Accepted
- No