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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:
Recommended:  CM2    [explanation]

This is 1 of 602 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 Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

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

Statistics:
     This is 1 of 41899 approved meteorites from Antarctica (plus 3802 unapproved names)
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