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Reckling Peak 17085
Basic information Name: Reckling Peak 17085
     This is an OFFICIAL meteorite name.
Abbreviation: RKP 17085
Observed fall: No
Year found: 2018
Country: Antarctica [Collected by Programma Nazionale di Ricerche in Antartide (PNRA), Italy]
Mass:help 1.4 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  CM2
Recommended:  CM2    [explanation]

This is 1 of 641 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 17 Jul 2021
Writeuphelp
Writeup from MB 110:

Reckling Peak 17085 (RKP 17085)        76°12.4917’S, 158°28.4067’E

Antarctica, Antarctica

Find: 2018 Jan 22

Classification: Carbonaceous chondrite (CM2)

History: Recovered by the 2017-18 Italian Programma Nazionale delle Ricerche in Antartide

Physical characteristics: The total mass of the sample is 1.4 g. The fusion crust is partly preserved. The surface is characterised by minor rustiness and a fracture that crosses all the sample.

Petrography: (UPisa). Chondrule abundance is 25 vol.%, matrix abundance is 70 vol.%, CAIs abundance is <1 vol.%, and metal abundance is <2 vol.%. Chondrule mean diameter is 200±150µm. Metal is present as blobs inside the matrix (kamacite and taenite). Matrix is fine-grained made of hydrated phyllosilicates (inferred by low total abundances) and alteration fronts are visible. The mineralogical composition is dominated by olivine, low-Ca pyroxene, high-Ca pyroxenes, plus cronstedtite, troilite, pentlandite, kamacite, taenite, calcite, perovskite, spinel, and accessory chromite, daubréelite, schreibersite

Classification: (UPisa). Carbonaceous chondrite (CM2). Low shock and weathering grade.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Antarctica
Origin or pseudonym:Reckling Moraine
Date:2018 Jan 22
Latitude:76°12.4917'S
Longitude:158°28.4067'E
Mass (g):1.4
Pieces:1
Class:CM2
Shock stage:S1
Weathering grade:low
Fayalite (mol%):21.0±22.8 (N=43)
Ferrosilite (mol%):5.9±16.5 (N=11); 1.8±3.1 (N=3)
Wollastonite (mol%):1.1±1.1 (N=11); 51.4±4.8 (N=3)
Magnetic suscept.:4.17
Classifier:A. Musolino, M.D. Suttle, L. Folco, DST-PI
Type spec mass (g):1.2
Type spec location:MNA-SI
Main mass:MNA-SI
Finder:PNRA
Comments:Submitted by L. Folco
Institutions
   and collections
DST-PI: Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria 53, 56126 Pisa, Italy (institutional address; updated 17 Oct 2011)
MNA-SI: Museo Nazionale dell'Antartide, Università di Siena, Via Laterina 8, I-53100 Siena, Italy; Website (institutional address; updated 13 Dec 2011)
UPisa: Dipartimento di Scienze della Terra, Università di Pisa, Italy (institutional address; updated 3 Aug 2010)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:

Antarctica
Coordinates:
     Recommended::   (76° 12' 30"S, 158° 28' 24"E)

Statistics:
     This is 1 of 45039 approved meteorites from Antarctica (plus 3472 unapproved names)
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