Meteoritical Bulletin: Entry for Dominion Range 18396

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Dominion Range 18396

Basic information

Name: Dominion Range 18396
This is an OFFICIAL meteorite name.
Abbreviation: DOM 18396
Observed fall: No
Year found: 2018
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 5.8 g

Classification
history:

Meteoritical Bulletin:	MB 112	(2023)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 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 10 Mar 2023

Writeup

help

Writeup from AMN 46(1):

Sample Number

DOM 18396

Newsletter

46,1

Location

Dominion Range

Field Number

25382

Dimensions (cm)

2.2 x 1.8 x 1.3

Weight (g)

5.75

Original Classification

CM2 CHONDRITE

Mineral Composition (%Fa & %Fs)

Fayalite (mol%): 30;Ferrosilite (mol%): 1

Weathering

A/B

Fracturing

A

Macroscopic Description - Kellye Pando

Black fusion crust weathered to an iridescent sheen covers the entire exterior surface. It has some white spots that are probably some type of weathering or possibly evaporites. Fresh interior is black matrix with some dark grey inclusions up to 1 mm in size.

Thin Section Description (,,2) - Cari Corrigan, Tim McCoy

The section consists of numerous small chondrules (up to 0.5 mm), mineral grains and CAIs in a black matrix; rare metal and sulfide grains are present. Aqueous alteration of the matrix is substantial. One olivine composition of Fa₃₀ was obtained. Pyroxenes are Fs₁. The meteorite is a CM2 chondrite. Possible pairing with other CM2s from the Dominion Range should be considered.

Antarctic Meteorite Images for Sample DOM 18396

Field Photo(s) :

ANSMET DOM 18396 - Field Number: 25382, NASA Photo Number: jsc2021e008763

Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah

Antarctic Meteorite Images for Sample DOM 18396

Lab Photo(s) :

Antarctic Meteorite Images for Sample DOM 18396

Thin Section Photo(s) :

Thin Section Photo of Sample DOM 18396,2 at 5x magnification in Cross Polarized Light

Thin Section Photo of Sample DOM 18396,2 at 5x magnification in Plane Polarized Light

Thin Section Photo of Sample DOM 18396,2 at 5x magnification in Reflected Light

Data from:
  MB112
  Table 0
  Line 0:

Date:	2018
Latitude:	-85.6434
Longitude:	166.6150
Mass (g):	5.75
Pieces:	1
Class:	CM2
Weathering grade:	A/B
Fayalite (mol%):	30
Ferrosilite (mol%):	1
Magnetic suscept.:	3.96
Classifier:	SI
Type spec mass (g):	5.75
Type spec location:	JSC
Main mass:	JSC
Finder:	ANSMET
Comments:	Submitted by AMN

Institutions
and collections

JSC: Mailcode XI, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 28 Jul 2022)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)

Catalogs:

Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 46(1) (2023), JSC, Houston
Published in Meteoritical Bulletin, no. 112, in preparation (2023)

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(85° 38' 36"S, 166° 36' 54"E)

Statistics:
This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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